To convert horsepower to foot pounds per second, multiply by 550.
The calculation uses 1 hp = 550 ft·lb/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·lb/s = value in hp × 550
hp- Input unit: horsepower
ft·lb/s- Output unit: foot pounds per second
How to use this calculator
- Enter a value in hp.
- Multiply by the stored conversion factor.
- Read the result in ft·lb/s; divide by the same factor to convert back.
Worked examples
Worked conversion
1 hp × 550 ≈ 550 ft·lb/s.
Reverse conversion
550 ft·lb/s ÷ 550 ≈ 1 hp. Rounding intermediate values can change the last displayed digit.
Frequently asked questions
What factor does this converter use?
It uses 550 ft·lb/s per hp.
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.
hp to ft·lb/s table
| hp | ft·lb/s (rounded) |
|---|---|
| 0 | 0 |
| 1 | 550 |
| 2 | 1100 |
| 5 | 2750 |
| 10 | 5500 |
| 100 | 55000 |
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