Length and Area
fttomil
Convert feet (ft) to mils (mil).
Factor1 ft = 12000 mil
Converter
ft
Accepts numbers or expressions, e.g. 150 + 14.7
Result
mil
Rendered to 6 significant figures.
Formula
Formula
mil = ft × 12000
Multiply any value in feet by 12000 to obtain the value in mils.
Worked example
Convert 1 ft to mil.
- 01Start with 1 ft.
- 02Multiply by the conversion factor: 1 × 12000 = 12000 mil.
Result1 ft = 12000 mil
Conversion table
| ft | mil |
|---|---|
| 1 | 12000 |
| 2 | 24000 |
| 5 | 60000 |
| 10 | 1.2000e+5 |
| 20 | 2.4000e+5 |
| 50 | 6.0000e+5 |
| 100 | 1.2000e+6 |
| 200 | 2.4000e+6 |
| 500 | 6.0000e+6 |
| 1000 | 1.2e+7 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from ft to mil?
1 ft equals 12000 mil. To convert, multiply the value in feet by 12000.
How do I convert 1 ft to mil?
1 ft = 12000 mil. For any value, multiply by 12000.
How do I convert mil back to ft?
Divide by the same factor — or equivalently, multiply by 8.333333e-5. So 1 mil = 8.33333e-5 ft.
When would I need to convert foot to mil (thousandth of an 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?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).