Template:Convert/list of units/length/short list

Length
(Full list)

system	unit	unit- code		symbol or abbrev.	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)	km mi
	metre	m		m	US spelling: meter	1.0 m (3 ft 3 in)	m ft m ftin
	centimetre	cm		cm	US spelling: centimeter	1.0 cm (0.39 in)	cm in
	millimetre	mm		mm	US spelling: millimeter	1.0 mm (0.039 in)	mm 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)	mi 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)	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	long code "foot" outputs foot (and never feet) Use of ′ and ″ symbols violates MOSNUM so is not provided.	1.0 ft (0.30 m)	ftin (feet and inches) ft m (foot m)
	inch	in		in	Use of ′ and ″ symbols violates MOSNUM so is not provided.	1.0 in (25 mm)	in cm in 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)