Velocity
ft/mintomm/s
Convert feet per minute (ft/min) to millimetres per second (mm/s).
Factor1 ft/min = 5.08 mm/s
Converter
ft/min
Accepts numbers or expressions, e.g. 150 + 14.7
Result
mm/s
Rendered to 6 significant figures.
Formula
Formula
mm/s = ft/min × 5.08
Multiply any value in feet per minute by 5.08 to obtain the value in millimetres per second.
Worked example
Convert 10 ft/min to mm/s.
- 01Start with 10 ft/min.
- 02Multiply by the conversion factor: 10 × 5.08 = 50.8 mm/s.
Result10 ft/min = 50.8 mm/s
Conversion table
| ft/min | mm/s |
|---|---|
| 1 | 5.08 |
| 2 | 10.16 |
| 5 | 25.4 |
| 10 | 50.8 |
| 20 | 101.6 |
| 50 | 254 |
| 100 | 508 |
| 200 | 1016 |
| 500 | 2540 |
| 1000 | 5080 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from ft/min to mm/s?
1 ft/min equals 5.08 mm/s. To convert, multiply the value in feet per minute by 5.08.
How do I convert 1 ft/min to mm/s?
1 ft/min = 5.08 mm/s. For any value, multiply by 5.08.
How do I convert mm/s back to ft/min?
Divide by the same factor — or equivalently, multiply by 0.1968504. So 1 mm/s = 0.19685 ft/min.
When would I need to convert foot per minute to millimetre per second?
Velocity conversions are needed for fluid flow analysis (line velocity targets, erosional limits), gas-stream calculations, and equipment specs that mix m/s, ft/s and engineering speed units.
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).