List of aspect ratios of national flags

The following table shows the aspect ratio (height to width ratio) of national flags and subnational flags used by countries and dependencies. Variant flags such as ensigns are listed in the "Alternative flags" column if they have different proportions from the national flag. Territories without an official flag distinct from that of their controlling country are excluded.

The ratios most commonly used are 2:3, used by 88 of 195 sovereign states, such as Algeria and Pakistan, followed by 1:2, used by 55 sovereign states, such as Canada and Nigeria, followed by 3:5, used by 17 sovereign states, such as Germany and Bangladesh. Most dependencies and former colonies use the same proportions as their mother countries: all British Overseas Territories use 1:2 ratios, while the flags of most former and current Dutch and French areas have 2:3 proportions.

For comparison, the ratios are also given as a decimal number, which is the flag width divided by its height (e.g. a 2:3 flag has a decimal ratio of ⁠3/2⁠ = 1.5). Flags with irrational ratios have only a decimal approximation, and have the exact form given in the "Notes" column (which also includes additional information such as similar flags, recent flag changes, etc.).

Aspect ratio	Number of sovereign countries
11:28	1 (Qatar)
1:2	55 (Abkhazia, Afghanistan (Islamic Emirate), Anguilla, Armenia, Australia, Azerbaijan, Bahamas, Belarus, Bermuda, Bosnia and Herzegovina, British Antarctic Territory, British Indian Ocean Territory, British Virgin Islands, Brunei, Canada, Cayman Islands, Christmas Island, Cocos (Keeling) Islands, Cook Islands, Croatia, Cuba, Dominica, Eritrea, Ethiopia, Falkland Islands, Fiji, Gibraltar, Guinea-Bissau, Honduras, Hungary, Ireland, Isle of Man, Jamaica, Jordan, Kazakhstan, Kiribati, North Korea, Kuwait, Latvia, Libya, Malaysia, Moldova, Mongolia, Montenegro, Montserrat, Nauru, New Caledonia, New Zealand, Nigeria, Niue, Norfolk Island, Northern Mariana Islands, North Macedonia, Palestine, Philippines, Pitcairn Islands, Sahrawi Arab Democratic Republic, Saint Lucia, Samoa, São Tomé and Príncipe, Seychelles, Slovenia, Solomon Islands, Somaliland, South Georgia and the South Sandwich Islands, South Ossetia, South Sudan, Sri Lanka, Sudan, Tajikistan, Timor-Leste, Tokelau, Tonga, Transnistria, Turks and Caicos Islands, Tuvalu, United Arab Emirates, United Kingdom, Uzbekistan, Zimbabwe)
10:19	4 (American Samoa, Liberia, Marshall Islands, Micronesia, United States)
22:41	(Guam)
11:20	1 (Paraguay)
189:335	1 (El Salvador)
4:7	3 (Iran, Mexico, Oman)
10:17	1 (Cape Verde)
3:5	17 (Bahrain, Bangladesh, Belize, Bulgaria, Burundi, Comoros, Costa Rica, Germany, Grenada, Guyana, Haiti, Jersey, Kyrgyzstan, Liechtenstein, Lithuania, Luxembourg, Nicaragua, Trinidad and Tobago)
11:18	1 (Finland)
1:φ	1 (Togo)
5:8	5 (Argentina, Guatemala, Palau, Poland, Sweden)
7:11	1 (Estonia)
16:25	1 (Cambodia)
17:26	(Åland)
2:3	88 (Afghanistan (Islamic Republic), Algeria, Angola, Antigua and Barbuda, Aruba, Austria, Barbados, Benin, Bhutan, Bonaire, Botswana, Burkina Faso, Cameroon, Central African Republic, Chad, Chile, China, Colombia, Republic of the Congo, Curaçao, Cyprus, Czech Republic, Djibouti, Dominican Republic, Ecuador, Egypt, Equatorial Guinea, Eswatini, France, French Guiana, French Polynesia, French Southern and Antarctic Lands, Gambia, Georgia, Ghana, Greece, Greenland, Guadeloupe, Guernsey, Guinea, Hong Kong, India, Indonesia, Iraq, Iraqi Kurdistan, Italy, Côte d'Ivoire, Japan, Kenya, South Korea, Laos, Lebanon, Lesotho, Macau, Madagascar, Malawi, Maldives, Mali, Malta, Martinique, Mauritania, Mauritius, Morocco, Mozambique, Myanmar, Namibia, Netherlands, Northern Cyprus, Pakistan, Panama, Peru, Portugal, Puerto Rico, Romania, Russia, Rwanda, Saba, Saint Kitts and Nevis, Saint-Pierre and Miquelon, Saint Vincent and the Grenadines, Saudi Arabia, Senegal, Serbia, Sierra Leone, Singapore, Sint Eustatius, Sint Maarten, Slovakia, Somalia, South Africa, Spain, Suriname, Syria, Taiwan, Tanzania, Thailand, Tunisia, Turkey, Turkmenistan, Uganda, Ukraine, United States Virgin Islands, Uruguay, Vanuatu, Venezuela, Vietnam, Yemen, Zambia)
15:22	1 (Bolivia)
7:10	2 (Andorra, Brazil)
5:7	2 (Albania, Kosovo)
18:25	1 (Iceland)
8:11	2 (Israel, Norway, Faroe Islands)
3:4	4 (Democratic Republic of the Congo, Gabon, Papua New Guinea, San Marino)
28:37	1 (Denmark)
4:5	1 (Monaco)
6:7	1 (Niger)
13:15	1 (Belgium)
1:1	2 (Switzerland, Vatican City)
≈50:41	1 (Nepal)

Legend:

• Bold: Sovereign states (UN member states and UN General Assembly non-member observer states)
• Bold italics: States with limited recognition
• Italics: Dependencies, constituent countries, and other non-sovereign territories

Click on the "Flag" header to sort by status: first sovereign states, then de facto countries, then dependencies.

Main list

Flag	Country or region	Ratio	Alternative flags	Sources and notes
	Abkhazia	1:2 (2)		[1] Another alternative government of that region has a more squarish unofficial flag.
	Afghanistan (Islamic Emirate)	1:2 (2)		Currently disputed following the Fall of Kabul in 2021.
	Afghanistan (Islamic Republic)	2:3 (1.5)		[2] From 2001 until 2004, a 1:2 version of the flag was used. Currently disputed following the Fall of Kabul in 2021.
	Åland (Finland)	17:26 (1.529)		Nordic cross
	Albania	5:7 (1.4)	Civil, state and naval ensigns: 2:3	[3]
	Algeria	2:3 (1.5)
	American Samoa (US)	10:19 (1.9)
	Andorra	7:10 (1.429)		[4] Compare to the flags of Chad, Moldova, and Romania
	Angola	2:3 (1.5)
	Anguilla (UK)	1:2 (2)		The 1967–1969 Republic of Anguilla's "Dolphin Flag" has a ratio of 3:5.
	Antigua and Barbuda	2:3 (1.5)
	Argentina	5:8 (1.6)	Civil flag and ensign: 9:14 (without sun)
	Armenia	1:2 (2)		[5]
	Aruba (Kingdom of the Netherlands)	2:3 (1.5)		[6]
	Australia	1:2 (2)		[7] Compare to the flag of New Zealand
	Austria	2:3 (1.5)
	Azerbaijan	1:2 (2)		[8]
	Bahamas	1:2 (2)
	Bahrain	3:5 (1.667)
	Bangladesh	3:5 (1.667)	Civil, naval and air force ensigns: 1:2	[9]
	Barbados	2:3 (1.5)	Naval ensign: 1:2	[10]
	Belarus	1:2 (2)		[11]
	Belgium	13:15 (1.154)	Civil and naval ensigns: both 2:3	The 2:3 civil version is used more commonly on land, although the 13:15 version is official.
	Belize	3:5 (1.667)
	Benin	2:3 (1.5)		Pan-African colours
	Bermuda (UK)	1:2 (2)
	Bhutan	2:3 (1.5)
	Bolivia	15:22 (1.467)	Civil ensign: 2:3 Qulla Suyu's banner: 1:1	[12]
	Bonaire (Netherlands)	2:3 (1.5)
	Bosnia and Herzegovina	1:2 (2)		[13]
	Botswana	2:3 (1.5)
	Brazil	7:10 (1.429)	Naval jack: 3:4	[14]
	British Antarctic Territory (UK)	1:2 (2)
	British Indian Ocean Territory (UK)	1:2 (2)
	British Virgin Islands (UK)	1:2 (2)
	Brunei	1:2 (2)	War flag: 2:3	[15]
	Bulgaria	3:5 (1.667)	Naval ensign and jack: 2:3 War flag: 1:1	[16]
	Burkina Faso	2:3 (1.5)		Pan-African colours
	Burundi	3:5 (1.667)		Until 1982, a 2:3 version of the flag was used.
	Cambodia	16:25 (1.563)
	Cameroon	2:3 (1.5)		Pan-African colours. Compare to the flag of Senegal
	Canada	1:2 (2)		[17]
	Cabo Verde	10:17 (1.7)	3:5 (1.667) 4:7 (1.75) 47:80 (1.702) 2:3 (1.5)	Constitution does not specify an official aspect ratio. Alternative ratios seen are listed.[18]
	Cayman Islands (UK)	1:2 (2)
	Central African Republic	2:3 (1.5)		Varying sources give 2:3 and 3:5 ratios.[19]
	Chad	2:3 (1.5)		Compare to the flag of Romania, in which the colours are a slightly lighter shade
	Chile	2:3 (1.5)		[20] The original version of the flag had an aspect ratio of ⁠1/2⁠φ2tan(54°) ≈ 1.8017.[21]
	China	2:3 (1.5)		[22]
	Christmas Island (Australia)	1:2 (2)
	Cocos (Keeling) Islands (Australia)	1:2 (2)
	Colombia	2:3 (1.5)		Compare to the flag of Ecuador
	Comoros	3:5 (1.667)
	Dem. Rep. of the Congo	3:4 (1.333)		All of the DRC's previous flags had 2:3 ratios.
	Republic of the Congo	2:3 (1.5)		[23] Pan-African colours
	Cook Islands (New Zealand)	1:2 (2)
	Costa Rica	3:5 (1.667)
	Croatia	1:2 (2)	Civil and state ensign, naval ensign and naval jack: all 2:3	[24] Pan-Slavic colours
	Cuba	1:2 (2)	Naval jack: 2:3	The naval jack, a white and blue bicolour with a white star in a red canton, was briefly the national flag during the Ten Years' War, from 1868 until 1878.
	Curaçao (Kingdom of the Netherlands)	2:3 (1.5)
	Cyprus	2:3 (1.5)		[25] Until 2006, a slightly different design was used, which had an aspect ratio of 3:5.
	Czech Republic	2:3 (1.5)		[26] Pan-Slavic colours
	Denmark	28:37 (1.321)	State flag and ensign: 56:107; naval ensign: 7:17 (both swallowtails)	Nordic cross. Officially between 28:34 (1.214) and 28:37 (1.321), but the longer version is used more often.[27]
	Djibouti	2:3 (1.5)
	Dominica	1:2 (2)
	Dominican Republic	2:3 (1.5)		[28]
	Ecuador	2:3 (1.5)		Compare to the flag of Colombia
	Egypt	2:3 (1.5)		Pan-Arab colours
	El Salvador	189:335 (1.772)	Civil flag (a plain tricolour): 3:5[citation needed] Alternative state flag (with the text "Dios Union Libertad"): 3:5 or 18:29[29]	[29]
	Equatorial Guinea	2:3 (1.5)
	Eritrea	1:2 (2)		The first versions of the flag were 2:3, as well as the flag of the EPLF, on which the national flag is based.
	Estonia	7:11 (1.571)	Naval ensign: 7:13 (swallowtail)[30]	[31]
	Eswatini	2:3 (1.5)
	Ethiopia	1:2 (2)		[32]
	Falkland Islands (UK)	1:2 (2)
	Faroe Islands (Denmark)	8:11 (1.375)		Nordic cross
	Fiji	1:2 (2)
	Finland	11:18 (1.636)	War flag/ensign: 11:19 (swallowtail)[33]	[33] Nordic cross
	France	2:3 (1.5)
	French Guiana (France)	2:3 (1.5)
	French Polynesia (France)	2:3 (1.5)
	French Southern and Antarctic Lands (France)	2:3 (1.5)
	Gabon	3:4 (1.333)
	Gambia	2:3 (1.5)
	Georgia	2:3 (1.5)		The 1990–2004 flag had a 3:5 ratio.
	Germany	3:5 (1.667)		[34] The version used from 1919 to 1933 was 2:3.
	Ghana	2:3 (1.5)		Pan-African colours
	Gibraltar (UK)	1:2 (2)
	Greece	2:3 (1.5)
	Greenland (Denmark)	2:3 (1.5)
	Grenada	3:5 (1.667)	Civil/state ensign and naval ensign: 1:2[35]	[35]
	Guadeloupe (France)	2:3 (1.5)
	Guam (US)	22:41 (1.864)		[36]
	Guatemala	5:8 (1.6)
	Guernsey (UK)	2:3 (1.5)	Civil and state ensigns: 1:2
	Guinea	2:3 (1.5)		Pan-African colours. Compare to the flag of Mali
	Guinea-Bissau	1:2 (2)		Pan-African colours
	Guyana	3:5 (1.667)	National ensign: 1:2 Civil air ensign: 7:11
	Haiti	3:5 (1.667)
	Honduras	1:2 (2)
	Hong Kong (China)	2:3 (1.5)		[37]
	Hungary	1:2 (2)	Civil flag/ensign: 2:3 War flag and naval ensign: 3:4	Compare to the flag of Tajikistan
	Iceland	18:25 (1.389)	State/war flag/ensign: 9:16 (swallowtail)[38]	[38] Nordic cross
	India	2:3 (1.5)		[39]
	Indonesia	2:3 (1.5)		Compare with Flag of Monaco.
	Iran	4:7 (1.75)
	Iraq	2:3 (1.5)		Compare to the flag of Yemen. Pan-Arab colours
	Iraqi Kurdistan (Iraq)	2:3 (1.5)		Flag also occasionally used by Kurds in other countries
	Ireland	1:2 (2)		[40] Compare to the flag of Côte d'Ivoire
	Isle of Man (UK)	1:2 (2)
	Israel	8:11 (1.375)	Civil, naval and air force ensigns: 2:3	[41]
	Italy	2:3 (1.5)	War flag: 1:1	[42][43]
	Côte d'Ivoire	2:3 (1.5)		Compare to the flag of Ireland
	Jamaica	1:2 (2)
	Japan	2:3 (1.5)		[44]
	Jersey (UK)	3:5 (1.667)	Civil and state ensigns: 1:2
	Jordan	1:2 (2)		[45] Compare to the flag of Palestine. Pan-Arab colours.
	Kazakhstan	1:2 (2)		[46][47]
	Kenya	2:3 (1.5)	Naval ensign: 1:2	Pan-African colours
	Kiribati	1:2 (2)
	North Korea	1:2 (2)	War, naval and air force flags: 3:4	[48][49] The North and South Korean Unification Flag has 2:3 proportions.
	South Korea	2:3 (1.5)		[50]
	Kosovo	5:7 (1.4)		[51][Note 1]
	Kuwait	1:2 (2)		Pan-Arab colours
	Kyrgyzstan	3:5 (1.667)
	Laos	2:3 (1.5)
	Latvia	1:2 (2)	Naval ensign and jack: 2:3	[52][53]
	Lebanon	2:3 (1.5)
	Lesotho	2:3 (1.5)
	Liberia	10:19 (1.9)
	Libya	1:2 (2)	Naval ensign: 2:3	The proportions were the same before 2011: 1:2 for the national flag (a solid green flag) and 2:3 for the naval ensign. Pan-Arab colours.
	Liechtenstein	3:5 (1.667)		[54]
	Lithuania	3:5 (1.667)	Naval ensign and jack: 1:2	Officially specified in the Law on the National Flag and Other Flags.[55][Note 2]
	Luxembourg	3:5 (1.667)	Civil ensign: 5:7	By law, both 1:2 and 3:5 ratios can be used, but 3:5 is more common.[56] The civil ensign (a blue-and-white striped flag charged with a red lion) may be flown as a civil flag alongside the national flag, in which case it should have the same proportions as the tricolour.
	Macau (China)	2:3 (1.5)
	Madagascar	2:3 (1.5)
	Malawi	2:3 (1.5)		Pan-African colours
	Malaysia	1:2 (2)
	Maldives	2:3 (1.5)
	Mali	2:3 (1.5)		Pan-African colours. Compare to the flag of Guinea
	Malta	2:3 (1.5)		[57]
	Marshall Islands	10:19 (1.9)
	Martinique (France)	2:3 (1.5)		Adopted 2023 and used alongside French national flag. Previously had several unofficial flags, some of which with a 2:3 ratio. From 2018 to 2019, the Ipséité flag used had a ratio of 8:11.
	Mauritania	2:3 (1.5)		Pan-African colours
	Mauritius	2:3 (1.5)	Civil and state ensigns: 26:57 Naval ensign: 1:2	[58]
	Mexico	4:7 (1.75)	Naval Jack: 1:1	[59]
	Micronesia	10:19 (1.9)
	Moldova	1:2 (2)	War flag: 2:3	[60] Compare to the flag of Andorra
	Monaco	4:5 (1.25)	State flag: 2:3	4:5 are the official proportions, though the flag is commonly displayed with a 2:3 ratio.[61] Compare with Flag of Indonesia.
	Mongolia	1:2 (2)		[62]
	Montenegro	1:2 (2)	Naval ensign: 2:5	[63]
	Montserrat (UK)	1:2 (2)
	Morocco	2:3 (1.5)
	Mozambique	2:3 (1.5)		Pan-African colours
	Myanmar	2:3 (1.5)	Naval ensign: 5:9	[64] The pre-2010 national flag had the same 5:9 proportions as the current naval ensign.
	Namibia	2:3 (1.5)		[65]
	Nauru	1:2 (2)
	Nepal	≈50:41 (0.82) ≈5000000000:4101687939 (0.82)		The only non-rectangular or non-square national flag. Also the only flag with a decimal ratio below 1 (i.e. taller than it is wide). While the red inner part has a ratio of exactly 4:3 (0.75),[66] the complete flag has an irrational aspect ratio of approximately 1.21901:1 due to the blue border.[Note 3][67]
	Netherlands	2:3 (1.5)		[68] Compare to the flag of Luxembourg. Flag ratio not explicitly specified in law, but set by convention.
	New Caledonia (France)	1:2 (2)		New Caledonia is one of the few regions with two official national flags: both the Kanak flag (shown) and the French tricolour (with 2:3 proportions) have official status.
	New Zealand	1:2 (2)		[69] Compare to the flag of Australia
	Nicaragua	3:5 (1.667)		[70]
	Niger	6:7 (1.167)		The flag is sometimes displayed with other proportions than the unusual 6:7 ratio, even by the Nigerien government. The constitution does not give a specific aspect ratio,[71] although the 6:7 version appears to be commonly displayed. A 2:3 variant is also seen.
	Nigeria	1:2 (2)		[72]
	Niue (New Zealand)	1:2 (2)
	Norfolk Island (Australia)	1:2 (2)		[73]
	Northern Cyprus	2:3 (1.5)
	Northern Mariana Islands (US)	1:2 (2)
	North Macedonia	1:2 (2)
	Norway	8:11 (1.375)	State/war flag/ensign: 16:27 (swallowtail)	Nordic cross
	Oman	4:7 (1.75)	Naval ensign: 2:3
	Pakistan	2:3 (1.5)	Naval ensign: 1:2	[74]
	Palau	5:8 (1.6)		[75]
	Palestine	1:2 (2)		Compare to the flags of Jordan and Sudan. Pan-Arab colours
	Panama	2:3 (1.5)
	Papua New Guinea	3:4 (1.333)
	Paraguay	11:20 (1.818)		[76]
	Peru	2:3 (1.5)	Naval jack: 1:1
	Philippines	1:2 (2)		Formerly was in 19:8 (2.375). [77]
	Pitcairn Islands (UK)	1:2 (2)
	Poland	5:8 (1.6)		[78] Compare to the flags of Indonesia and Monaco, which have the colours positioned on the opposite side
	Portugal	2:3 (1.5)	Naval jack: 1:1	[79]
	Puerto Rico (US)	2:3 (1.5)		Compare to the flag of Cuba, where the blue and red colours are swapped
	Qatar	11:28 (2.545)		[80] Qatar's flag is the only national flag having a width more than twice its height.
	Romania	2:3 (1.5)	Naval jack: 1:1	Compare to the flag of Chad, in which the colours are a slightly darker shade
	Russia	2:3 (1.5)		[81]
	Rwanda	2:3 (1.5)
	Saba (Netherlands)	2:3 (1.5)	National ensign: 1:2 Civil air ensign: 7:11
	Sahrawi Arab Dem. Rep.	1:2 (2)		Compare to the flag of Palestine, Jordan, and Sudan
	Saint Kitts and Nevis	2:3 (1.5)	Naval ensign: 1:2
	Saint Lucia	1:2 (2)		[82]
	Saint-Pierre and Miquelon (France)	2:3 (1.5)
	Saint Vincent and the Grenadines	2:3 (1.5)		Several websites list 7:11 proportions.
	Samoa	1:2 (2)
	San Marino	3:4 (1.333)		[83]
	São Tomé and Príncipe	1:2 (2)
	Saudi Arabia	2:3 (1.5)	War flag: 5:7 (pennant) Naval ensign: 12:25
	Senegal	2:3 (1.5)		Pan-African colours. Compare to the flag of Cameroon
	Serbia	2:3 (1.5)		[84] The former flag of Yugoslavia had a 1:2 ratio, as did the flag of Serbia and Montenegro. Pan-Slavic colours.
	Seychelles	1:2 (2)		[85]
	Sierra Leone	2:3 (1.5)
	Singapore	2:3 (1.5)	Civil, state and naval ensigns: 1:2	[86]
	Sint Eustatius (Netherlands)	2:3 (1.5)
	Sint Maarten (Kingdom of the Netherlands)	2:3 (1.5)
	Slovakia	2:3 (1.5)		[87] Pan-Slavic colours
	Slovenia	1:2 (2)	Civil ensign: 2:3	[88] Pan-Slavic colours
	Solomon Islands	1:2 (2)
	Somalia	2:3 (1.5)
	Somaliland	1:2 (2)
	South Africa	2:3 (1.5)		[89]
	South Georgia and the South Sandwich Islands (UK)	1:2 (2)
	South Ossetia	1:2 (2)
	South Sudan	1:2 (2)		Pan-African colours
	Spain	2:3 (1.5)	Army flag: 1:1	[90]
	Sri Lanka	1:2 (2)
	Sudan	1:2 (2)		Pan-Arab colours
	Suriname	2:3 (1.5)
	Sweden	5:8 (1.6)	War flag/ensign: 1:2 (swallowtail)[91]	[91] Nordic cross
	Switzerland	1:1 (1)	Civil/state ensign: 2:3[92]	One of two square national flags (the other being Vatican City, of which a 1:1 variant is one of a few that are acceptable).
	Syria	2:3 (1.5)		The 1932–1958 and 1961–1963 flag, which is still used by some groups in the Syrian civil war, has 1:2 proportions. Pan-Arab colours.
	Taiwan	2:3 (1.5)
	Tajikistan	1:2 (2)		Compare to the flag of Hungary
	Tanzania	2:3 (1.5)		[93]
	Thailand	2:3 (1.5)
	Timor-Leste	1:2 (2)
	Togo	1:φ (1.618)		The sides of the flag are in the golden ratio φ = ⁠1+√5/2⁠ ≈ 1.618034, making the flag of Togo one of two national flags with irrational proportions (the other being that of Nepal). Pan-African colours.
	Tokelau (New Zealand)	1:2 (2)
	Tonga	1:2 (2)
	Transnistria	1:2 (2)		The civil flag (without the hammer and sickle and star) is also sometimes used with a 2:3 ratio.
	Trinidad and Tobago	3:5 (1.667)	Civil/state and naval ensigns: 1:2[94]	[94]
	Tunisia	2:3 (1.5)
	Turkey	2:3 (1.5)		[95][96][Note 4]
	Turkmenistan	2:3 (1.5)		[97]
	Turks and Caicos Islands (UK)	1:2 (2)
	Tuvalu	1:2 (2)
	Uganda	2:3 (1.5)
	Ukraine	2:3 (1.5)	Naval ensign 2:3
	United Arab Emirates	1:2 (2)		[98] Pan-Arab colours.
	United Kingdom	1:2 (2)
	United States	10:19 (1.9)		Law does not specify flag proportions.[99] They were detailed in executive order 10834 in 1959.[100]
	United States Virgin Islands (US)	2:3 (1.5)
	Uruguay	2:3 (1.5)
	Uzbekistan	1:2 (2)
	Vanuatu	2:3 (1.5)		State Flag and Armorial Bearings Public Declaration (March 19,1980) shows an image with a 2:3 ratio. This takes precedence over unofficial sources that claim the ratio is 19:36, 11:18, or 3:5.
	Vatican City	1:1 (1) *		* Explicitly undefined, although 1:1 is considered an acceptable ratio. If 1:1 ratio assumed, one of two square national flags (the other being Switzerland). Variants of ratios between 1:1 and 1:2 (2) have been seen as well.
	Venezuela	2:3 (1.5)
	Vietnam	2:3 (1.5)		[101]
	Yemen	2:3 (1.5)		[102] Compare to the flag of Iraq. Pan-Arab colours.
	Zambia	2:3 (1.5)		[103]
	Zimbabwe	1:2 (2)		Pan-African colours

• Nine of the thirteen overseas regions and territories of France (the other four being French Polynesia, Martinique, New Caledonia and the French Southern and Antarctic Lands) do not have official flags other than the French tricolour. A flag for the department of French Guiana has been officially adopted, though this flag has not been approved by the regional council. Most of the other territories however have unofficial flags, and some of these flags are used locally. See Flags of the regions of France.
• Akrotiri and Dhekelia, Sovereign Base Areas of the United Kingdom, do not have an official flag other than the Union Jack. A reported green flag defaced with two golden lions is actually the flag of the Dhekelia Garrison, and is not an official flag of the entire territory.^[104]
• The British Overseas Territory of Saint Helena, Ascension and Tristan da Cunha has no separate flag and uses the Union Jack. The three constituent parts have their own flags, which all follow the "blue ensign with territorial arms" pattern of most other BOTs. See Flag of Saint Helena, Flag of Ascension Island and Flag of Tristan da Cunha.
• The nine United States Minor Outlying Islands do not have official flags, though there are unofficial local flags for five of the islands and island groups (Johnston Atoll, the Midway Islands, Palmyra Atoll, Wake Island and Navassa Island).
• None of the Norwegian overseas territories have flags.
• Antarctica has no government and as such cannot officially adopt a flag, though there are a few proposed flags used to represent the continent.

Notes

1. The website of the prime minister's office gives a flag with a ratio of 2:3 listed beneath it.
2. Another page on the website of the Seimas (Lithuanian parliament) says "[the flag's] width to height ratio is 1 to 2", which seems to refer to the flag's ratio before the 2004 amendment to the flag law.
3. The exact width:height ratio of the flag of Nepal is:

   ${\displaystyle {\frac {24+{\frac {297-180{\sqrt {2}}}{92-36{\sqrt {2}}}}\cdot \left(1+{\frac {8-3{\sqrt {2}}}{{\sqrt {118-48{\sqrt {2}}}}-6}}\right)}{32+{\frac {297-180{\sqrt {2}}}{92-36{\sqrt {2}}}}\cdot \left(1+{\frac {6}{\left(8-3{\sqrt {2}}\right)\cdot \left({\sqrt {1+{\frac {18}{41-24{\sqrt {2}}}}}}-1\right)}}\right)}}}$ ${\displaystyle ={\frac {3\left(40665857401448+2001055256793{\sqrt {2}}+144{\sqrt {17\left(10411242561157458401-2208656823577139226{\sqrt {2}}\right)}}\right)}{164926945077845}}}$ ${\displaystyle \approx 0.82033758776860084636\ldots }$
4. The law stipulates that the flag should have a white hem (uçkurluk) at the hoist side, one thirtieth of the flag height wide, which would make the flag's aspect ratio 15:23. This hem however does not appear to be part of the flag design.

References

1. "The ratio of the length to the width of the flag is 2:1." — State Symbols — President of the Republic of Abkhazia
2. "The flag of Afghanistan shall be made up of three equal parts. (...) The width of every colour [stripe] shall be half of its length." (The Constitution of Afghanistan Archived 2014-04-07 at the Wayback Machine). The total width is therefore 3 ⋅ ⁠1/2⁠ = ⁠3/2⁠ times the flag height.
3. "Përmasat e flamurit kombëtar përcaktohen ne raportin 1 me 1,4 njësi." (The dimensions of the national flag are set in the ratio of 1 to 1.4 units.) — Law 8926, 22 July 2002 (at Commons)
4. Official construction sheet — Govern d'Andorra Identitat Institucional^{[permanent dead link]}; the flag width is shown as twice 0.50* L, while the height is 0.70*L.
5. "The width-length ratio of the flag is 1/2" — The Government of Armenia
6. "[D]e verhoudingen van de breedte tot de lengte van de vlag zijn 2 : 3." (The proportion of the height to the length of the flag is 2:3.) — Landsverordening vlag, wapen en volkslied (Regulation of national flag, coat of arms and anthem) — Government of Aruba Archived 2014-04-07 at the Wayback Machine (PDF file)
7. "[The flag] is twice as long as it is wide" — Department of the Environment and Water Resources — Australian Government
8. "Width of the flag constitutes half of its length" — Constitution of Azerbaijan — Website of the President of Azerbaijan Archived 2013-07-30 at the Wayback Machine
9. "The 'National Flag' will be (...) in the proportion of length to width 10:6" — People's Republic of Bangladesh Flag Rules, 1972 Archived 2009-03-06 at the Wayback Machine
10. "The dimensions of the National Flag shall be in the following proportions: (...) three to two (3:2)" — Flag Etiquette — Barbados Integrated Government Archived 2015-07-13 at the Wayback Machine
11. "The flag's width-to-length ratio is 1 to 2" — State symbols — President of the Republic of Belarus
12. "Alto 7.5C; Ancho 11C" (Height: 7.5*C; width: 11*C) — Decreto Supremo No 27630 — Official Gazette of the Plurinational State of Bolivia Archived 2014-10-21 at the Wayback Machine
13. "Odnos između dužine i širine zastave je 1:2." (The ratio between the length and the width of the flag is 1:2.) — Zakon o zastavi Bosne i Hercegovine (Law on the Flag of Bosnia and Herzegovina) — Ministry of Justice of Bosnia and Herzegovina (Article 3)
14. Height: 14 modules; Width: 20 modules. — Decree-Law 4545, 31 July 1942 — Senate of Brazil Archived 3 March 2016 at the Wayback Machine
15. "The standard measures 72 inches long by 36 inches wide" — The Brunei Darussalam State Flag, Information Department
16. "Форма - правоъгълна със съотношение на широчина към дължина - 3:5" (Shape: rectangular with ratio of width to length 3:5) — Национално знаме на Република България (National Flag of the Republic of Bulgaria) — Republic of Bulgaria Council of Ministers Archived 2015-09-24 at the Wayback Machine
17. "Twice as long as it is wide" — Canadian Heritage — Government of Canada
18. The Constitution of the Republic of Cabo Verde specifies the sizes of the stripes and the size and position of the circle of stars, but not the size of each star and the width/height ratio of the entire flag.
19. Central African Republic at Flags of the World. Retrieved on 15 December 2014.
20. "La Bandera Nacional es igual en la vaina a dos tercios de su vuelo" (The hoist of the National Flag is equal to two thirds of its fly) — Determina los Emblemas Nacionales y Reglamenta su Uso (Specifies the National Symbols and Regulates their Usage) — Ley Chile
21. Navas, Andrés (2015). "The amazing story of a forgotten golden flag" (PDF). Preprint.
22. "The proportions of [the national flag's] length and height shall be 3 to 2" — Flags & Emblems — Government of Hong Kong SAR Archived 2018-12-01 at the Wayback Machine
23. Loi constitutionnelle n° 8 du 18 août 1959, fixant le drapeau de la République du Congo - Cour constitutionnelle
24. "Omjer širine i dužine zastave je 1 : 2." (The ratio of the width and the length of the flag is 1:2.) — Official construction sheet — Croatian Parliament Archived 2015-09-24 at the Wayback Machine
25. "Size: Ratio 3x2" — Presidency of the Republic of Cyprus Archived 2017-01-26 at the Wayback Machine
26. "(..) with the width:length ratio equal to 2:3" — The National Flag — Government of the Czech Republic
27. "Denmark".
28. "La relación ancho:largo es de 2:3" (The ratio width:length is 2:3) — Bandera Nacional — Presidencia República Dominicana Archived 2018-01-27 at the Wayback Machine
29. • Art.7. "La bandera magna será de tres metros treinta y cinco centímetros de largo por un metro ochenta y nueve centímetros de ancho, en la cual irá dibujado el Escudo de Armas con todos sus blasones." (The greater flag is 3 m 35 cm long and 1 m 89 cm wide and includes the entire national coat of arms)
    • Art.9. "La bandera de uso en edificios y oficinas públicos, será de un metro de largo por sesenta centímetros de ancho (..) En la franja del centro llevará la leyenda: DIOS UNION LIBERTAD" (The flag for use at public buildings is 1 m long by 60 cm wide (..) The central stripe shall bear the inscription 'Dios Union Libertad')
    • Art.11. "La bandera de desfiles deberá medir un metro cuarenta y cinco centímetros de largo por noventa centímetros de ancho (..) La franja blanca de la bandera para desfiles, llevará en letras doradas la inscripción: DIOS UNION LIBERTAD" (The flag for use at parades will be 1.45 m long by 90 cm wide (..) The white stripe of the flag for parades shall bear in golden letters the inscription 'Dios Union Libertad')

    - Ley de Símbolos Patrios Archived 2014-03-25 at the Wayback Machine
30. "Eesti mereväe lipu laiuse ja pikkuse vahekord on 7:13." (The ratio of the width and length of the Estonian naval flag is 7:13.) — Kaitseministri lipu ja Eesti mereväe lipu kirjeldus — Riigi Teataja (State Gazette)
31. "Eesti lipu laiuse ja pikkuse vahekord on 7:11." (The ratio of the width and length of the Estonian flag is 7:11.) — Lipp — Riigikantselei (State Chancellery) Archived 2014-09-03 at the Wayback Machine
32. "The length of the Flag shall be twice its width" — Official Gazette (February 1996) Archived 2014-02-25 at the Wayback Machine
33. "The national flag is rectangular and has the following dimensions: height 11 and width 18 units of measurement. (...) The state flag with three points is one unit wider than the rectangular state flag." — Describing the Finnish Flag — Ministry of the Interior Archived 2015-09-24 at the Wayback Machine
34. "Verhältnis der Höhe zur Länge des Flaggentuches wie 3 zu 5" (The ratio of the height and the width of the flag cloth [is] 3 by 5) — Anordnung über die deutschen Flaggen (Design of the German Flag) (archived)
35. "The dimensions of the National Flag shall be in the following proportions: Flown on land: five to three (5:3); Flown on Sea: two to one (2:1)" — Flag of Grenada — Government of Grenada Archived 2017-07-06 at the Wayback Machine
36. "[A] rectangular field of marine blue seventy-eight inches long and forty inches wide, trimmed on all sides with a border of deep red two inches in width" (Guam Code Annotated, Title 1: General Provisions — Unified Courts of Guam Archived 2014-12-10 at the Wayback Machine). ⁠2+78+2/2+40+2⁠ = ⁠82/44⁠ = ⁠41/22⁠.
37. "The regional flag is rectangular in shape with its length/height ratio being 3 to 2" — Flags & Emblems — Government of Hong Kong SAR Archived 2017-07-01 at the Wayback Machine
38. Official construction of the national flag and state flag at the website of the Prime Minister's Office (graphical version)
39. "Ratio of the length to the height (...) shall be 3:2" — Flag Code of India — Ministry of Home Affairs Archived 2017-10-19 at the Wayback Machine
40. "The flag is twice as wide as it is high" — Department of the Taoiseach
41. "The flag is 220 cm. long and 160 cm. wide" — Israel Ministry of Foreign Affairs
42. "Orientativamente le dimensioni ordinarie delle bandiere sono le seguenti: per esterno cm 300x200 oppure cm. 450x300 (asta da balcone m 4, asta da terra m 8), per interno cm 150x100 (asta da interno cm 250)" (The standard sizes of the flag are: 300x200 cm or 450x300 cm for outdoor usage, 150x100 cm for indoor usage) — La Bandiera (The Flag) — Government of Italy
43. "[A]ltezza 2/3 della lunghezza" (Height 2/3 of the length) — Flag FAQ — Government of Italy
44. "The vertical-to-horizontal ratio of the flag is set at 2:3" — Consulate-General of Japan in San Francisco Archived 2012-12-11 at the Wayback Machine
45. "The Jordanian flag shall be of the following form and dimensions: The length of the flag shall be twice its width." — The Constitution (English version) — Hashemite Kingdom of Jordan Prime Ministry (Article 4)
46. "The ratio of the Flag's width to its length: 1:2." — The Flag of the Republic of Kazakhstan — Electronic Government
47. "Width/length ratio of the flag is 1:2." — National Flag of the Republic of Kazakhstan — Committee for Religious Affairs of the Ministry of Culture and Sport of the Republic of Kazakhstan Archived 2017-05-31 at the Wayback Machine
48. "The ratio of the flag's width to its length is 1:2" — Flag and Emblem — Official webpage of the DPR of Korea Archived 2019-11-21 at the Wayback Machine
49. "flag of Korea, North". Encyclopedia Britannica.
50. "깃면의 길이(가로)와 너비(세로)는 특별한 경우 외에는 3:2의 비율로 한다." (The width and the height are in the ratio of 3:2, except in special cases.) — Flag Production — National Archives of Korea
51. "[The flag's] dimensions are orientated and are fixed in the scale 1:1,4" — Republic of Kosova Official Gazette Archived 2017-08-16 at the Wayback Machine
52. "The width to length ratio of the National flag of Latvia is 1:2." — Law on the National Flag of Latvia (Word document) — State Languages Center (Valsts Valodas Centrs) Archived 2017-01-30 at the Wayback Machine
53. "[T]he correlation of the width and length of the flag is fixed as 1:2." — The Flag — Ministry of Foreign Affairs of the Republic of Latvia Archived 2010-11-21 at the Wayback Machine
54. "Das Verhältnis der Höhe zur Länge des Flaggentuches beträgt drei zu fünf." (The ratio of height to length of the flag cloth is three to five.) — Über Wappen, Farben, Siegel und Embleme des Fürstentums Liechtenstein (Wappengesetz) — Liechtensteinisches Landesgesetzblatt Archived 2016-10-26 at the Wayback Machine
55. "The ratio of the width of the national flag of Lithuania (...) to the length (...) must be 3:5." — Law on the National Flag and Other Flags — Seimas of Lithuania
56. Luxembourg at Flags of the World. Retrieved on 15 December 2014.
57. "[T]he breadth of the flag is one and a half times its height" — Graphical Specifications for the National Flag of Malta — Gov.mt
58. "The flag is in the proportion of 6 to 4" — National Flag — Republic of Mauritius Archived 2014-04-19 at the Wayback Machine
59. "La proporción entre anchura y longitud de la bandera, es de cuatro a siete." (The proportion between width and length of the flag is four to seven.) — Diario Oficial de la Federación — 8 de febrero de 1984
60. "[P]roporţia dintre lăţimea şi lungimea Drapelului – de 1:2." (The ratio of the width and the length of the flag is 1:2.) — Simbolica de Stat a Republicii Moldova — Republica Moldova Pagina Oficială Archived 2016-11-14 at the Wayback Machine
61. Monaco at Flags of the World. Retrieved on 15 December 2014.
62. "өргөн, уртын 1: 2-ын харьцааг чанд баримтална" (The width and height should maintain a 1:2 ratio) — President of Mongolia Archived 2012-04-16 at the Wayback Machine
63. "Odnos dužine i širine zastave je dva prema jedan." (The ratio of the length and the width of the flag is two to one.) — Državni simboli Crne Gore (State symbols of Montenegro) — Vlada Crne Gore
64. "The model size of the Union flag is rectangular, with 9 feet in length and 6 feet in width" — The Union Flag Law — Republic of the Union of Myanmar Union Attorney General's Office Archived 2015-05-12 at the Wayback Machine
65. "The National Flag of Namibia shall be rectangular in the proportion of three in the length to two in the width" — The Constitution of the Republic of Namibia (Schedule 6)
66. "[D]raw a line AC [the left edge of the red shape] perpendicular to AB [the bottom edge of the red shape] making AC equal to AB plus one third AB" — National Flag — Supreme Court of Nepal Archived 2014-04-07 at the Wayback Machine
67. Calculation of the Aspect Ratio of the National Flag of Nepal
68. "De lengte moet zich wel verhouden tot de breedte als 3:2" (The length must relate to the width in the ratio of 3:2) — Rijksoverheid
69. "The flag proportion is 1:2". — Description and dimensions — Ministry for Culture and Heritage
70. "La forma de la Bandera Nacional es un rectángulo con las dimensiones proporcionales de tres (3) a cinco (5)" (The shape of the National Flag is a rectangle with the ratio of dimensions of three by five) — Ley sobre Caracteristicas y Uso de los Simbolos Patrios (Law on the Design and Usage of the National Symbols) — National Assembly Archived 2017-03-29 at the Wayback Machine
71. Niger at Flags of the World. Retrieved on 15 December 2014.
72. "Proportions: 1:2"; "(...) the length of the flag being double that of the Flag's breadth" — About Nigeria — Federal Republic of Nigeria Archived 2014-09-23 at the Wayback Machine
73. "The sides of the flag shall be in the ratio of 1 to 2" — Norfolk Island Flag and Public Seal Act, 1979 Archived 2013-11-13 at the Wayback Machine
74. "Width of flag is equal to 2/3 of length of flag" — Pakistan Flag — Government of Pakistan Interior Division (archived)
75. "The width of the flag bears the ratio to its length of 1.0 to 1.6." — Republic of Palau National Government | Flag
76. "La proporción geométrica de su diseño y confección deberá mantener una relación lo más aproximada posible a 1:0.55 entre el lado mayor y el lado menor del rectángulo" (The geometric proportion of [the flag's] design and manufacturing should be as closely as possible 1:0.55 between the long side and the short side of the rectangle) — Gaceta Oficial (Official Gazette), 17 July 2013 Archived 24 September 2015 at the Wayback Machine
77. "The width of the flag: 1; the length of the flag: 2" — Republic Act No. 8491 — Official Gazette of the Republic of the Philippines
78. "Stosunek szerokości flagi do jej długości - wynosi 5:8" (The ratio of the width of the flag to its length is 5:8) — Official Gazette, 1980 no. 7 item 18 (Appendix 3)
79. "O comprimento da bandeira será de vez e meia a altura da tralha." (The length of the flag shall be one and half times the height of the hoist.) — Decreto que Aprova a Bandeira Nacional — Governo de Portugal
80. ".(28:11) عند استخدام العلم خارج المباني، داخل دولة قطر، فإنه يجب أن تكون النسبة بين طول وعرض العلم" (When using a flag outside of buildings within the State of Qatar, the ratio between the length and the width of the flag should be 11:28.) — Law No. 14 on the Flag of Qatar — Qatar Legal Portal
81. "The ratio of the width of the flag to its length is 2:3" — State symbols of the Russian Federation — President of Russia Official Website Archived 2013-04-03 at the Wayback Machine
82. "The dimensions (...) shall be in the following proportions: 6'x3' and 9x41⁄2" — The Flag of Saint Lucia — Government of Saint Lucia Archived Website
83. "Proporzioni della bandiera: 3:4" (Proportion of the flag: 3:4) — Repubblica di San Marino — Consiglio Grande e Generale (PDF)
84. Width is A; height is 2/3*A. — Official construction sheet (ZIP file) — Serbian Government
85. "The National Flag of the Republic of Seychelles is a rectangular flag with proportions one by two" — New National Symbols of the Republic of Seychelles — Republic of Seychelles Ministry of Foreign Affairs Archived 2016-03-04 at the Wayback Machine
86. "[The flag] is in the ratio of 3 (length): 2 (breadth)". — National Flag — Singapore National Heritage Board Archived 2015-07-13 at the Wayback Machine
87. "Pomer strán štátnej vlajky je 2:3." (The aspect ratio of the national flag is 2:3.) — Štátna vlajka (National flag) — Slovakian Republic government office
88. "The ratio of the width to the height of the flag shall be one to two" — Act regulating the coat of arms, flag and anthem of the Republic of Slovenia and the flag of the Slovene nation — Protocol of the Republic of Slovenia Archived 2017-01-03 at the Wayback Machine
89. "Rectangular in the proportion of two in the width to three in the length" — Government Notice No. 510
90. "Largo de la bandera: 3/2 de a; Ancho de la bandera: a" (Width of flag: 3/2*a; height of flag: a) — Consolidated Royal Decree
91. "Den tvärskurna flaggans höjd förhåller sig till dess längd som 10 till 16. (...) Den tretungade flaggans höjd är hälften av dess längd, tungorna medräknade." (The ratio of the flag's height to its length is 10 to 16. (...) The height of the three-tongued [swallowtail] flag is half of its length, the tongues included.) — Lag (1982:269) om Sveriges flagga — Sveriges Riksdag
92. Height: B; width: A = 1.5*B. — Bundesgesetz über die Seeschifffahrt unter der Schweizer Flagge (page 67)
93. "Ratio length to breadth: three to two" — National Flag — Tanzania Government Portal
94. "The dimensions of the National Flag shall be in the proportions of five to three (5:3). For flags carried at sea the dimensions shall be two to one (2:1)." — National Flag — Trinidad and Tobago National Library and Information System Authority Archived 2015-07-13 at the Wayback Machine
95. "Length of the Flag is one and half times of its width" — Turkish Flag Regulations (Word document) — Republic of Turkey Ministry of Transport, Maritime Affairs and Communication Legislation Database
96. Genişlik (Width): G; Boy (Length): 1 1/2*G. — Turkish Flag — Ministry of National Education
97. "Пропорции ширины полотнища к его длине составляют один к полтора." (The proportion of the width of the flag to its length is one to one and a half.) — Государственный флаг Туркменистана как символ единства и независимости нации и нейтралитета государства — Turkmenistan Золотой Век
98. ".يكون علم دولة الإمارات العربية المتحدة مستطيل الشكل، طوله نصف عرضه،" (The flag of the United Arab Emirates is rectangular, the height half of the width.) Guide to the Use of the Flag of the United Arab Emirates — Ministry of Cabinet Affairs Archived 2016-03-06 at the Wayback Machine
99. "Sizes/Proportions of U.S. flags". www.crwflags.com. Retrieved 2019-03-24.
100. "Executive Orders". National Archives. 2016-08-15. Retrieved 2019-03-24.
101. "Quốc kỳ nước Cộng hoà xã hội chủ nghĩa Việt Nam hình chữ nhật, chiều rộng bằng hai phần ba chiều dài, nền đỏ, ở giữa có ngôi sao vàng năm cánh." (The national flag of the Socialist Republic of Vietnam is rectangular, with a width two thirds of the length, a red background, and in the center a gold five-pointed star.) — General information — Socialist Republic of Vietnam Government Portal Archived 2016-03-08 at the Wayback Machine
102. ".مستطيل الشكل، عرضه ثلثا طوله" (Rectangular in shape, the width two thirds of the length.) — Introduction to Yemen — Government of the Republic of Yemen
103. "...of overall dimensions 3:2" — The National Flag and Armorial Ensigns Act — National Assembly of Zambia
104. Akrotiri and Dhekelia at Flags of the World. Retrieved on 15 December 2014.