Length converter: cm to inches, feet and inches

Type a length such as 180 cm or 5 ft 10 in, or type in any field below: every other unit follows. A height is also given in feet and inches.

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Amount and unit

For example 180 cm, 5'10", 30 cm in in, 10 km in mi, 6 ft in m.

Answer

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Every unit of a family, together. Choose a family to start from its example; type in any field and the rest follow, and the line above with them. The ring beside a unit makes it the answer.

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Definitions

Inch, foot, yard: 1 yard is 0.9144 m exactly; a foot is a third of a yard (0.3048 m) and an inch a 36th (2.54 cm).UK Weights and Measures Act 1985, Schedule 1; the same values in NIST Handbook 44 (2026), Appendix C.
Mile: 1,760 yards, 1,609.344 m exactly.UK Weights and Measures Act 1985, Schedule 1.
Nautical mile: 1,852 m exactly, used at sea and in the air.BIPM, The International System of Units (SI Brochure), 9th edition, Table 8.
Metric: The metre is the SI unit; a millimetre is a thousandth, a centimetre a hundredth, a kilometre a thousand metres, a micrometre a millionth and a nanometre a billionth. Type nm for nanometres and NM or nmi for nautical miles.BIPM, The International System of Units (SI Brochure), 9th edition.
US and UK: The same inch, foot, yard and mile in both. Since 1 January 2023 the international foot is the US foot; the old US survey foot (1200/3937 m, 2 parts in a million longer) is kept only for historic and legacy uses, such as old survey records.US Federal Register 85 FR 62698 (5 October 2020); NIST, Ending the Era of the U.S. Survey Foot. Sources read on 10 October 2026.

Heights: centimetres to feet and inches

cm	feet and inches	inches
150 cm	4 ft 11.1 in	59.1 in
155 cm	5 ft 1.0 in	61.0 in
160 cm	5 ft 3.0 in	63.0 in
165 cm	5 ft 5.0 in	65.0 in
170 cm	5 ft 6.9 in	66.9 in
175 cm	5 ft 8.9 in	68.9 in
180 cm	5 ft 10.9 in	70.9 in
185 cm	6 ft 0.8 in	72.8 in
190 cm	6 ft 2.8 in	74.8 in
195 cm	6 ft 4.8 in	76.8 in

Rounded to a tenth of an inch. Type any other height in the line above for the exact value.