Length and Area
mmtoft
Convert millimetres (mm) to feet (ft).
Factor1 mm = 0.00328084 ft
Converter
mm
Accepts numbers or expressions, e.g. 150 + 14.7
Result
ft
Rendered to 6 significant figures.
Formula
Formula
ft = mm × 0.00328084
Multiply any value in millimetres by 0.00328084 to obtain the value in feet.
Worked example
Convert 305 mm to ft.
- 01Start with 305 mm.
- 02Multiply by the conversion factor: 305 × 0.00328084 = 1.00066 ft.
Result305 mm = 1.00066 ft
Conversion table
| mm | ft |
|---|---|
| 1 | 0.0032808 |
| 2 | 0.0065617 |
| 5 | 0.016404 |
| 10 | 0.032808 |
| 20 | 0.065617 |
| 50 | 0.16404 |
| 100 | 0.32808 |
| 200 | 0.65617 |
| 500 | 1.6404 |
| 1000 | 3.2808 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from mm to ft?
1 mm equals 0.00328084 ft. To convert, multiply the value in millimetres by 0.00328084.
How do I convert 1 mm to ft?
1 mm = 0.00328084 ft. For any value, multiply by 0.00328084.
How do I convert ft back to mm?
Divide by the same factor — or equivalently, multiply by 304.8. So 1 ft = 304.8 mm.
When would I need to convert millimetre to foot?
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 mm and ft are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).