Length and Area
fttoin
Convert feet (ft) to inches (in).
Factor1 ft = 12 in
Converter
ft
Accepts numbers or expressions, e.g. 150 + 14.7
Result
in
Rendered to 6 significant figures.
Formula
Formula
in = ft × 12
Multiply any value in feet by 12 to obtain the value in inches.
Worked example
Convert 1 ft to in.
- 01Start with 1 ft.
- 02Multiply by the conversion factor: 1 × 12 = 12 in.
Result1 ft = 12 in
Conversion table
| ft | in |
|---|---|
| 1 | 12 |
| 2 | 24 |
| 5 | 60 |
| 10 | 120 |
| 20 | 240 |
| 50 | 600 |
| 100 | 1200 |
| 200 | 2400 |
| 500 | 6000 |
| 1000 | 12000 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from ft to in?
1 ft equals 12 in. To convert, multiply the value in feet by 12.
How do I convert 1 ft to in?
1 ft = 12 in. For any value, multiply by 12.
How do I convert in back to ft?
Divide by the same factor — or equivalently, multiply by 0.08333333. So 1 in = 0.0833333 ft.
When would I need to convert foot to inch?
Length conversions appear in piping, layout, and mechanical drawings — particularly when reconciling imperial fittings or instrument lengths with metric plant drawings.
Is the conversion exact?
Yes. Both ft and in are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).