Feet to inches converter
Feet (and inches) to inches, and inches back to feet
Type in either box. The example turns 6 feet into inches.
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- Feet and inches
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- Centimeters
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- Meters
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The rule
There are exactly 12 inches in a foot. Feet to inches: multiply by 12. Inches to feet: divide by 12; the whole number is the feet and the remainder is the inches. Both units are defined in metric since 1959: an inch is 2.54 cm and a foot 30.48 cm (NIST Handbook 44, Appendix C).
Worked example
6 ft × 12 = 72 inches. For 5 feet 7 inches, 5 × 12 = 60, plus 7 makes 67 inches. Going back, 67 ÷ 12 = 5 remainder 7, so 5 ft 7 in. As a decimal that is 5.5833 feet, which is not the same as 5.7 feet.
Typing feet and inches
The feet box understands 5 ft 7 in, 5'7", 5 7 and decimals such as 5.5 (five and a half feet, which is 5 ft 6 in). The inches box takes plain numbers and fractions such as 66 1/2.
The common mistake
A decimal foot is not feet and inches. 5.5 feet is 5 feet 6 inches, because 0.5 of a foot is 6 inches. 5 ft 5 in is 5.4167 feet. The answer card always gives both forms, so you can check which one a form or plan wants.
Metric too
The card also shows centimeters and meters. For heights, cm to feet goes straight from centimeters to feet and inches.
Rounding
The answer is worked out from the exact definition, then shown to 4 decimal places (6 significant figures for numbers below 1). It says "exactly" only when nothing was rounded.
Feet to inches chart
Worked out from the exact definitions and rounded as above.
| Feet | Inches |
|---|---|
| 1 ft 0 in | 12 in |
| 2 ft 0 in | 24 in |
| 3 ft 0 in | 36 in |
| 4 ft 0 in | 48 in |
| 5 ft 0 in | 60 in |
| 5 ft 6 in | 66 in |
| 6 ft 0 in | 72 in |
| 7 ft 0 in | 84 in |
| 8 ft 0 in | 96 in |
| 10 ft 0 in | 120 in |
| 12 ft 0 in | 144 in |
| 20 ft 0 in | 240 in |
| 50 ft 0 in | 600 in |
| 100 ft 0 in | 1,200 in |
| Inches | Feet |
|---|---|
| 12 in | 1 ft 0 in |
| 24 in | 2 ft 0 in |
| 36 in | 3 ft 0 in |
| 48 in | 4 ft 0 in |
| 50 in | 4 ft 2 in |
| 60 in | 5 ft 0 in |
| 63 in | 5 ft 3 in |
| 66 in | 5 ft 6 in |
| 67 in | 5 ft 7 in |
| 70 in | 5 ft 10 in |
| 72 in | 6 ft 0 in |
| 100 in | 8 ft 4 in |
| 144 in | 12 ft 0 in |