Height Converter — Feet & Inches to cm
5'10" to centimeters and back — compound feet-and-inches input, exact math.
Height is the one length measurement that stays stubbornly compound: 5 feet 10 inches, not 70 inches or 1.78 meters. A plain feet-to-meters converter can't take that input directly, so this tool accepts feet and inches as separate fields and converts to centimeters (and back) live. The factor is exact — 1 inch = 2.54 cm by the 1959 international yard and pound agreement — so 5′10″ is precisely 177.8 cm, and the common rounding to 178 cm gains you two millimeters.
Exact conversion: 1 inch = 2.54 cm (1959 international yard and pound agreement). Heights are conventionally rounded to the nearest centimeter or half-inch — medical records use the unrounded value.
How to use
Enter feet and inches (or centimeters)
Type into either side — the other side updates instantly. Inches accept decimals (10.5) for half-inch heights.
Read the compound result
The result line shows the conventional 5'10" = 177.8 cm format, plus meters and total inches for forms that want a single number.
Common heights
| Feet & inches | Centimeters | Meters |
|---|---|---|
| 5′0″ | 152.4 cm | 1.52 m |
| 5′4″ | 162.6 cm | 1.63 m |
| 5′7″ | 170.2 cm | 1.70 m |
| 5′10″ | 177.8 cm | 1.78 m |
| 6′0″ | 182.9 cm | 1.83 m |
| 6′2″ | 188.0 cm | 1.88 m |
| 6′5″ | 195.6 cm | 1.96 m |
Frequently asked questions
- How do I convert 5'10" to cm by hand?
- Flatten to inches first: 5 × 12 + 10 = 70 inches. Then multiply by 2.54: 70 × 2.54 = 177.8 cm. The two-step order matters — converting the feet and inches separately and adding also works (152.4 + 25.4), but flattening first is harder to get wrong.
- Why does my height show differently on different forms?
- Rounding conventions differ. 5'10" is exactly 177.8 cm; forms that take whole centimeters round it to 178, and converting 178 cm back gives 5'10.1". Medical and sports records keep the decimal; everyday forms don't.
- Does the calculator store my numbers?
- No. Everything stays in your browser.