To convert mph to feet per second, multiply by 1.466666667.
The calculation uses 1 mph = 1.466666667 ft/s. Results are displayed to at most 10 significant digits. Definitions can be exact while a displayed decimal is rounded. Match the displayed precision to your original measurement.
The formula
value in ft/s = value in mph × 1.466666667
mph- Input unit: mph
ft/s- Output unit: feet per second
How to use this calculator
- Enter a value in mph.
- Multiply by the stored conversion factor.
- Read the result in ft/s; divide by the same factor to convert back.
Worked examples
Worked conversion
1 mph × 1.466666667 ≈ 1.466666667 ft/s.
Reverse conversion
1.466666667 ft/s ÷ 1.466666667 ≈ 1 mph. Rounding intermediate values can change the last displayed digit.
Frequently asked questions
What factor does this converter use?
It uses 1.466666667 ft/s per mph.
Why can another converter show a slightly different answer?
Check the unit convention first (such as US versus Imperial or decimal versus binary), then compare rounding. Measurement uncertainty is separate from the unit conversion.
mph to ft/s table
| mph | ft/s (rounded) |
|---|---|
| 0 | 0 |
| 1 | 1.466666667 |
| 2 | 2.933333333 |
| 5 | 7.333333333 |
| 10 | 14.66666667 |
| 100 | 146.6666667 |
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