To convert inches to feet, divide by 12. 70 inches is 5.833 ft, which is 5 ft 10 in. The remainder after dividing by 12 is the leftover inches.
Medical forms, growth charts and product specs often give height or length in total inches. This page shows decimal feet and the feet-and-inches form side by side.
How to use the inches to feet converter
- Type the value in inches into the box. Decimals are fine.
- The result in feet updates as you type, along with the working.
- Need the other way? Switch the direction menu, or open the feet to inches converter.
Formula
There are exactly 12 inches in a foot by definition, in both the US customary and British imperial systems.
Worked example
Convert 70 inches to feet and inches.
- 70 ÷ 12 = 5.8333 ft.
- Whole feet: 5. Leftover: 70 − 5 × 12 = 10 in.
- Result: 5.8333 ft, or 5 ft 10 in (5′10″).
Inches to feet chart
Common values, rounded to 4 decimal places.
| Inches (in) | Feet (ft) | ft + in |
|---|---|---|
| 6 in | 0.5 ft | 0 ft 6 in |
| 12 in | 1 ft | 1 ft 0 in |
| 18 in | 1.5 ft | 1 ft 6 in |
| 24 in | 2 ft | 2 ft 0 in |
| 30 in | 2.5 ft | 2 ft 6 in |
| 36 in | 3 ft | 3 ft 0 in |
| 48 in | 4 ft | 4 ft 0 in |
| 54 in | 4.5 ft | 4 ft 6 in |
| 60 in | 5 ft | 5 ft 0 in |
| 62 in | 5.1667 ft | 5 ft 2 in |
| 64 in | 5.3333 ft | 5 ft 4 in |
| 66 in | 5.5 ft | 5 ft 6 in |
| 68 in | 5.6667 ft | 5 ft 8 in |
| 70 in | 5.8333 ft | 5 ft 10 in |
| 72 in | 6 ft | 6 ft 0 in |
| 74 in | 6.1667 ft | 6 ft 2 in |
| 84 in | 7 ft | 7 ft 0 in |
| 96 in | 8 ft | 8 ft 0 in |
| 100 in | 8.3333 ft | 8 ft 4 in |
| 120 in | 10 ft | 10 ft 0 in |
Heights in inches
US clinics and fitness apps often record height in inches. Useful landmarks: 60 in = 5 ft, 66 in = 5′6″, 72 in = 6 ft. To get height in centimeters, multiply total inches by 2.54 (see inches to cm converter).
For room and furniture sizes, the decimal form is easier to multiply: a 100-inch wall is 8.333 ft, or 8 ft 4 in.
Quick mental math
Count dozens. 64 in: five dozen is 60, so 5 ft with 4 in left over, or 5′4″.
Related conversions
Going the other way: feet to inches converter. Related pages: inches to cm converter, cm to inches converter, feet to meters converter. For other units in the same family, use the full length converter.
Caveats and assumptions
- Results show up to 10 significant digits; the chart is rounded for reading. Keep full precision for engineering, medical or legal work.
Frequently asked questions
How many feet is 64 inches?
5.333 ft, which is 5 ft 4 in.
How many feet is 100 inches?
8.333 ft, or 8 ft 4 in.
How many feet is one inch?
1/12 ft, about 0.0833 ft.
How do you write feet and inches?
With a prime and double prime: 5′10″. In plain text, 5' 10" is common.
Sources
- NIST — SI Units: Length (1959 definition of the inch) — 1 in = 25.4 mm exactly
- NIST Handbook 44 — Appendix C, General Tables of Units of Measurement — US customary length table (12 in = 1 ft, 3 ft = 1 yd)
This calculator gives estimates for planning and education. Check measurements, local codes, supplier specs and your school's official policy before relying on a result. See our disclaimer and how we build and check calculators.