How to convert feet to inches
One foot equals 12 inches, so multiply the number of feet by 12:
in = ft × 12
ft = in ÷ 12 (1 in = 0.083333 ft)
Example: 3 ft → 3 × 12 = 36 in.
Going the other way, divide by 12, or multiply by 0.083333; the inches to feet converter does it for you.
Everyday values
| Feet | Inches | For example |
|---|---|---|
| 1 ft | 12 in | one foot |
| 3 ft | 36 in | one yard |
| 5.5 ft | 66 in | 5 ft 6 in |
| 6 ft | 72 in | 6 feet |
| 8 ft | 96 in | a sheet of plywood (8 ft long) |
| 10 ft | 120 in | 10 feet |
When you need this conversion
Multiply feet by 12. When a length is written in feet and inches, convert the feet and add the inches: 5 ft 9 in = 5 × 12 + 9 = 69 inches. Decimal feet are common in surveying and on some US plans: 5.75 ft is 69 inches, not 5 ft 7.5 in.
Foot to inch conversion table
| ft | in | ft | in |
|---|---|---|---|
| 0.5 ft | 6 in | 6.5 ft | 78 in |
| 1 ft | 12 in | 7 ft | 84 in |
| 1.5 ft | 18 in | 7.5 ft | 90 in |
| 2 ft | 24 in | 8 ft | 96 in |
| 2.5 ft | 30 in | 8.5 ft | 102 in |
| 3 ft | 36 in | 9 ft | 108 in |
| 3.5 ft | 42 in | 9.5 ft | 114 in |
| 4 ft | 48 in | 10 ft | 120 in |
| 4.5 ft | 54 in | 10.5 ft | 126 in |
| 5 ft | 60 in | 11 ft | 132 in |
| 5.5 ft | 66 in | 11.5 ft | 138 in |
| 6 ft | 72 in | 12 ft | 144 in |
About the units
- Foot (ft): 12 inches, exactly 0.3048 metres.
- Inch (in): exactly 2.54 centimetres (international agreement of 1959).
Both are units of length. The conversion factor comes from the exact definitions above, so the calculator is exact; results are only rounded for display (up to six significant digits).
Frequently asked questions
How many inches are in one foot?
One foot is 12 inches. One inch is 0.083333 feet.
How do I convert feet to inches?
Multiply the value in feet by 12. To go back, divide by 12.
What is 3 ft in inches?
3 ft = 36 in.
What is 5.5 ft in inches?
5.5 ft = 66 in.
Sources
- NIST Special Publication 811 (2008), Guide for the Use of the International System of Units (SI), Appendix B: conversion factors.
- NIST Handbook 44 (2024), Appendix C: General tables of units of measurement.
Last reviewed 5 October 2026. Results are estimates; see our disclaimer.