Feet & Inches to CM Converter
Convert feet and inches to centimeters (cm) instantly. Enter feet and inches separately and get exact metric centimeters.
How to use it
- Enter feet and inches into the two input boxes.
- The equivalent in centimeters appears live with worked steps.
Examples
| 5 ft 10 in | 177.8 cm |
| 6 ft 0 in | 182.88 cm |
Feet and inches don't convert to metric in one step, because feet and inches are already two different units of the same measurement. This tool combines them first — feet × 12 + inches gives total inches — then converts that single number to centimeters.
The constant is exact: 1 inch = 2.54 cm by international agreement (since 1959). Total inches × 2.54 = centimeters, no rounding ambiguity involved.
Worked example
5 ft 10 in = (5 × 12) + 10 = 70 inches. 70 × 2.54 = 177.8 cm exactly. For 6 ft 0 in: 72 inches × 2.54 = 182.88 cm.
Where this comes up
- Filling in a height field on a form or app that only accepts centimeters
- Comparing your height (thought of in feet/inches) against a metric spec — door height, bed length, medical equipment
- Converting US/UK height listings for international sports, dating or travel profiles
Runs entirely in your browser. Nothing you type is uploaded, logged or shared.
Last updated 18 August 2026