Soat-bêng:
≡ tēng-gī
= choa̍t-tùi téng-î
≈ tāi-iok téng-î
| Tan-ūi ê miâ-chheng | Kì-hō | Kah SI tan-ūi ê koan-hē |
|---|---|---|
| kong-chhioh (SI ki-pún tan-ūi) | m | ≡ m |
| Fermi | fm | ≡ 10-15 m = 1 fm |
| x unit; siegbahn | xu | ≈ 1.0021×10-13 m |
| stigma | ≡ 1×10-12 m = 1 pm | |
| Bohr poàn-kèng | a0; b | ≡ α/(4πR∞) ≈ 5.291 772 083×10-11 ± 19×10-20 m |
| goân-chú tan-ūi | au | ≡ a0 ≈ 5.291 772 083×10-11 ± 19×10-20 m |
| ångström | Å | ≡ 10-10m = 0.1 nm |
| micron | μ | ≡ 10-6m = 1 μm |
| twip | twp | ≡ 1/1440 in ≈ 1.763 889×10-5 m |
| mil; thou | mil | ≡ 10-3 in = 2.54×10-5 m |
| mickey | ≡ 1/200 in = 1.27×10-4 m | |
| calibre | cal | ≡ 1/100 in = 0.254 mm |
| point (ATA) | pt | ≡ 0.013837 in = 0.351 459 8 mm |
| point (PostScript) | pt | ≡ 1/72 in ≈ 0.352 778 mm |
| point (metric) | pt | ≡ 3/8 mm = 0.375 mm |
| point (Didot; European) | pt | ≡ 0.376 065 mm |
| line | ln | ≡ 1/12 in ≈ 2.116 667 mm |
| line (Paris) ["ligne"] | l | ≡ 1/12 p = 1/443.296 m ≈ 2.255 829 mm |
| line (Québec) ["ligne"] | l (Qc) | ≡ 1/12 p (Qc) = 2.255 837 5 mm |
| barley corn | ≡ 1/3 in ≈ 8.466 667 mm | |
| finger | ≡ 7/8 in = 22.225 mm | |
| Eng-chhùn | in | ≡ 0.0254 m = 25.4 mm |
| chhùn (Paris) ["pouce"] | p | ≡ 1/12 P = 1/(36 + 11.296/12) m ≈ 27.069 949 mm |
| chhùn (Québec) ["pouce"] | p (Qc) | ≡ 1/12 P (Qc) = 27.070 05 mm |
| stick | ≡ 2 in = 50.8 mm | |
| nail (cloth) | ≡ 2 1/4 in = 57.15 mm | |
| palm | ≡ 3 in = 76.2 mm | |
| hand | ≡ 4 in = 0.1016 m | |
| finger (cloth) | ≡ 4 1/2 in = 0.1143 m | |
| span | ≡ 6 in = 0.1524 m | |
| link (Gunter's) | lnk | ≡ 66/100 ft = 0.201 168 m |
| span (cloth) | ≡ 9 in = 0.2286 m | |
| quarter | ≡ 1/4 yd = 0.2286 m | |
| link (Ramden's; Engineer's) | lnk | ≡ 1 ft = 0.3048 m |
| Eng-chhioh (Clarke's; Cape) | ft (Cla) | ≈ 0.304 797 265 4 m |
| Eng-chhioh (Sear's) | ft (Sear) | ≈ 0.304 799 47 m |
| Eng-chhioh (Indian) | ft Ind | ≈ 0.304 799 514 m |
| Eng-chhioh (Benoît) | ft (Ben) | ≈ 0.304 799 735 m |
| Eng-chhioh | ft | ≡ 12 in = 0.3048 m |
| Eng-chhioh (Bí-kok; U.S. Survey) | ft (US) | ≡ 1200/3937 m ≈ 0.304 800 610 m |
| Eng-chhioh (Paris) ["pied"] | P | ≡ 1/(3 + 11.296/144) m ≈ 0.324 839 385 m |
| Eng-chhioh (Québec) ["pied"] | P (Qc) | ≡ 1.06575 ft = 0.324 840 6 m |
| cubit | ≡ 18 in = 0.4572 m | |
| pace | ≡ 2 1/2 ft = 0.762 m | |
| bâ | yd | ≡ 3 ft = 0.9144 m |
| ell | ell | ≡ 45 in = 1.143 m |
| fathom | fm | ≡ 6 ft = 1.8288 m (sometimes ≡ 1/1000 NM = 1.852 m) |
| rod; pole; perch | rd | ≡ 16 1/2 ft = 5.0292 m |
| rope | rope | ≡ 20 ft = 6.096 m |
| chain (Gunter's) | ch | ≡ 66 ft = 20.1168 m |
| chain (Ramden's; Engineer's) | ch | ≡ 100 ft = 30.48 m |
| arpent (Paris) | arp | ≡ 180 P = 25 920/443.296 m ≈ 58.471 089 m |
| arpent (Québec) | arp (Qc) | ≡ 180 P (Qc) = 58.471 308 m |
| cable length (International) | ≡ 1/10 NM = 185.2 m | |
| cable length (Imperial) | ≡ 608 ft = 185.3184 m | |
| furlong | fur | ≡ 660 ft = 201.168 m |
| cable length (U.S.) | ≡ 720 ft = 219.456 m | |
| Eng-lí | mi | ≡ 1760 yd = 5280 ft = 1609.344 m |
| Eng-lí (Bí-kok; Statute; U.S. Survey) | mi | ≡ 5280 ft (US) = 5280×1200/3937 m ≈ 1609.347 219 m |
| hái-lí | NM; nm | ≡ 1852 m |
| hái-lí (Admiralty) | NM (Adm); nm (Adm) | ≡ 6080 ft = 1853.184 m |
| geographical mile | mi | ≡ 6082 ft = 1853.7936 m |
| telegraph mile | mi | ≡ 6087 ft = 1855.3176 m |
| league | lea | ≡ 3 mi = 4828.032 m |
| statute league | lea | ≡ 3 mi (US) ≈ 4828.041 656 m |
| nautical league | NL; nl | ≡ 3 NM = 5556 m |
| kng-bió | ≡ 2.997 924 58×108 m | |
| kng-hun | ≡ 60 light-seconds = 1.798 754 748×1010 m | |
| thian-bûn tan-ūi | AU | = 149 597 870.691 ± 0.030 km |
| spat | S | ≡ 1012 m = 1 Tm |
| kng-tiám-cheng | ≡ 60 kng-hun = 1.079 252 848 8×1012 m | |
| kng-ji̍t | ≡ 24 kng-tiám-cheng = 2.590 206 837 12×1013 m | |
| kng-nî | l.y. | ≡ c0×86 400×365.25 = 9.460 730 472 580 8×1015 m |
| parsec | pc | ≈ 180×60×60/π AU ≈ 206 264.806 25 AU = 3.261 563 776 9 ± 6×10-10 light-years = 3.085 677 581 3×1016 ± 6×106 m |
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