Convert feet to inches
One foot equals exactly 12 inches, and one inch is exactly 25.4 millimetres. Example: 5.5 ft × 12 = 66 in. The common height notation 5′7″ means 5 ft + 7 in = 67 in.
Type a value and get the result with its full working shown — the coefficient, the multiplication and the rounding you choose.
foot → inch
5.5 × 12 = 66 in
See the exact formula: 1 ft × 12 → in · Source: NIST Handbook 44 / NIST SP 811.
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feet to inches conversion table
| ft | in |
|---|---|
| 1 ft | 12.0000 in |
| 2 ft | 24.0000 in |
| 3 ft | 36.0000 in |
| 4 ft | 48.0000 in |
| 5 ft | 60.0000 in |
| 6 ft | 72.0000 in |
| 7 ft | 84.0000 in |
| ft | in |
|---|---|
| 8 ft | 96.0000 in |
| 9 ft | 108.0000 in |
| 10 ft | 120.0000 in |
| 25 ft | 300.0000 in |
| 50 ft | 600.0000 in |
| 100 ft | 1200.0000 in |
Rounded to 4 decimals · exact values in the calculator above.
The exact formula
The international inch is exactly 25.4 mm, fixed in 1959. Screen sizes, pipes and wrench sizes are quoted in inches. Multiply by 12 (ft → in); reverse: multiply by 0.083333333333333.
Unit definitions
- foot (ft)
- The international foot is exactly 0.3048 m = 12 inches. Feet and inches remain the standard US and UK notation for human height. Source: NIST Handbook 44 / NIST SP 811.
- inch (in)
- The international inch is exactly 25.4 mm, fixed in 1959. Screen sizes, pipes and wrench sizes are quoted in inches. Source: NIST Handbook 44 / NIST SP 811.
Frequently asked questions
How many inches is 5 feet?
5 ft = 60 in, since a foot is exactly 12 inches by definition.
How many inches is 5′7″?
5′7″ = 5 ft + 7 in = 67 in = 1.7018 m. The prime marks denote feet and double primes denote inches.
How do I convert feet to inches?
Multiply feet by 12. For the reverse, divide inches by 12 — or type a height like 5'7" and let the parser split it for you.
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