Height Converter
Convert height from feet and inches to cm and back — 5 ft 8 in is 172.72 cm. Dedicated ft/in input, instant, no sign-up.
Convert feet & inches ⇄ centimetres
Formula: 5 ft × 30.48 + 8 in × 2.54 = 172.72 cm (1.7272 m)
How the height conversion works
The converter applies cm = ft × 30.48 + in × 2.54. One foot is exactly 30.48 cm and one inch is exactly 2.54 cm, so the conversion is exact — the classic mistake is typing 5.8 ft for 5'8", which actually means 5 ft 9.6 in. This page keeps feet and inches as separate inputs so that mistake cannot happen.
Worked example: 5'8" is 5 × 30.48 = 152.4 cm plus 8 × 2.54 = 20.32 cm, giving 172.72 cm in total. Going back, 180 cm ÷ 2.54 = 70.866 in, which is 5 ft 11 in (60 in + 10.866 in). For plain feet without the inches part, use our feet to cm converter.
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Sources & official guidance
Estimate only — the foot is 30.48 cm and the inch 2.54 cm by international agreement; conversions are exact. See our disclaimer.