| LENGTH (Full list) | ||||||
|---|---|---|---|---|---|---|
| system | unit | unit- code |
abbrev- iation |
notes | sample default conversion |
combination output units |
| SI | megametre | Mm | Mm | US spelling: megameter |
1.0 Mm (620 mi) | |
| kilometre | km | km | US spelling: kilometer |
1.0 km (0.62 mi) |
| |
| metre | m | m | US spelling: meter |
1.0 m (3 ft 3 in) |
| |
| centimetre | cm | cm | US spelling: centimeter |
1.0 cm (0.39 in) |
| |
| millimetre | mm | mm | US spelling: millimeter |
1.0 mm (0.039 in) |
| |
| micrometre | μm (um) | µm | US spelling: micrometer |
1.0 µm (3.9×10−5 in) | ||
| nanometre | nm | nm | US spelling: nanometer |
1.0 nm (3.9×10−8 in) | ||
| non-SI metric | ångström | Å (angstrom) |
Å | 1.0 Å (3.9×10−9 in) | ||
| Imperial & US customary |
mile | mi | mi | 1.0 mi (1.6 km) |
| |
| furlong | furlong | (none) | 1.0 furlong (660 ft; 200 m) | |||
| chain | chain | (none) | 1.0 chain (66 ft; 20 m) | |||
| rod | rd | rd | For other names of this unit see the full list. | 1.0 rd (17 ft; 5.0 m) | ||
| fathom | fathom | (none) | assumes 1 fathom ≡ 6 ft | 1.0 fathom (6.0 ft; 1.8 m) | ||
| yard | yd | yd | assumes the international definition | 1.0 yd (0.91 m) | ||
| foot | ft (foot) | ft | code "foot" will show "foot" if plural. code "ft" will show "foot" or "feet" depending on value. |
1.0 ft (0.30 m) |
| |
| inch | in | in | 1.0 in (25 mm) |
| ||
| Other | nautical mile | nmi | nmi | the international standard nautical mile For other nautical miles see the full list. |
1.0 nmi (1.9 km; 1.2 mi) | |
| parsec | pc | pc | 1.0 pc (3.3 ly) | |||
| light-year | ly | ly | 1.0 ly (63,000 AU) | |||
| astronomical unit | AU | AU | 1.0 AU (150,000,000 km; 93,000,000 mi) | |||