Work out height converter (feet inches to cm) instantly with clear inputs, formula shown and shareable results.
A height in feet and inches is first collapsed into a single number of inches — twelve inches to the foot — and then multiplied by 2.54 to reach centimetres, since the inch is defined as exactly 2.54 cm. Keeping the two steps separate is what makes the result exact rather than a two-part approximation.
Total inches
total in = feet × 12 + inches
Centimetres
cm = total in × 2.54
5 ft 9 in is 69 inches, and 69 × 2.54 = 175.3 cm.
Yes. The inches field accepts decimals, so 5 ft 9.5 in works and is treated as 69.5 inches.