Foot-pounds per Second to Mechanical Horsepower Converter
Convert foot-pounds per second (ft·lbf/s) to mechanical horsepower (hp) with the calculator below. Enter a value in either field for an instant result.
10 ft·lbf/s equals 0.01818181818 hp.
Foot-pounds per Second to Mechanical Horsepower Conversion Table
Use these common values as a quick reference.
| Foot-pounds per Second (ft·lbf/s) | Mechanical Horsepower (hp) |
|---|---|
| 0.01 ft·lbf/s | 0.00001818181818 hp |
| 0.1 ft·lbf/s | 0.0001818181818 hp |
| 1 ft·lbf/s | 0.001818181818 hp |
| 2 ft·lbf/s | 0.003636363636 hp |
| 5 ft·lbf/s | 0.009090909091 hp |
| 10 ft·lbf/s | 0.01818181818 hp |
| 20 ft·lbf/s | 0.03636363636 hp |
| 50 ft·lbf/s | 0.09090909091 hp |
| 100 ft·lbf/s | 0.1818181818 hp |
| 1000 ft·lbf/s | 1.818181818 hp |
How to Convert Foot-pound per Second to Mechanical Horsepower
Conversion: 1 ft·lbf/s = 0.001818181818 hp.
Formula: mechanical horsepower = foot-pounds per second × 0.001818181818
- Enter the foot-pound per second value.
- Apply the conversion formula shown above.
- Round the result only as much as your use requires.
Example: 10 ft·lbf/s = 0.01818181818 hp.
Understanding the Foot-pound per Second to Mechanical Horsepower Conversion
One foot-pound per second equals 0.001818181818 hp. Because this factor is less than one, the numerical value usually becomes smaller when converting from ft·lbf/s to hp, even though the measured quantity does not change.
Power measures the rate at which energy is transferred or work is performed. Watts are the SI reference, while horsepower and BTU per hour are common for engines, motors, heating and cooling.
Foot-pound per Second is commonly used for mechanical and engineering calculations, while Mechanical Horsepower is commonly used for engines, motors and machinery. Converting between them makes measurements easier to compare without changing the quantity being described.
Worked Foot-pound per Second to Mechanical Horsepower Examples
These examples show how the conversion works for several practical values.
- 0.5 ft·lbf/s: 0.5 × 0.001818181818 = 0.0009090909091 hp.
- 3 ft·lbf/s: 3 × 0.001818181818 = 0.005454545455 hp.
- 25 ft·lbf/s: 25 × 0.001818181818 = 0.04545454545 hp.
Accuracy, Precision and Rounding
Everyday Units stores each unit as a factor relative to a shared base unit—Watt. The entered value is converted to that base and then to mechanical horsepower.
The calculator normally shows up to ten significant digits and removes unnecessary trailing zeros. This balances accuracy with readability. If the result will be used in engineering, science, medicine, trade or another precision-sensitive setting, follow the rounding and tolerance rules required for that specific use.
Common mistakes to avoid
- Check that the selected symbols match the units shown in the source measurement.
- Do not round the conversion factor before completing the calculation.
- Keep the unit symbol beside the number so the result cannot be mistaken for another measurement.
About the Units
Foot-pound per Second (ft·lbf/s)
Definition: One foot-pound per second is equal to 1.355817948 W in the converter’s base system.
History and origin: This power unit expresses mechanical work per second.
Current use: This unit is commonly used for mechanical and engineering calculations.
Mechanical Horsepower (hp)
Definition: One mechanical horsepower is equal to 745.6998716 W in the converter’s base system.
History and origin: Mechanical horsepower was developed to compare engines with draft horses.
Current use: This unit is commonly used for engines, motors and machinery.
Frequently Asked Questions
How many mechanical horsepower are in one foot-pound per second?
One foot-pound per second is 0.001818181818 hp. The calculator uses this relationship for every value entered.
What is the reverse mechanical horsepower to foot-pound per second conversion?
One mechanical horsepower equals 550 ft·lbf/s. Use the reverse-conversion link below to open that calculator directly.
Can I convert decimal and very small values?
Yes. Enter integers, decimals, or very small values in either field. Results use sensible precision, with scientific notation only when it improves readability.
How should I round the result?
Keep the full calculator result during intermediate work, then round once at the end. Everyday estimates may need only two or three decimal places, while technical work may require more significant digits.
Is the foot-pound per second to mechanical horsepower conversion accurate?
The calculation uses the centralized conversion constant shown on this page. Everyday Units converts through the category’s base unit and keeps more precision internally than is normally needed for display.
How This Calculator Works
All calculations happen locally in your browser. No conversion request is sent to an external service. The same centralized unit definitions power the calculator, formula, examples and tables, which helps keep the figures consistent across every related page. Read our conversion methodology and sources for standards, assumptions and rounding details.
For a quick check, compare the forward and reverse relationships above: converting a value to hp and back to ft·lbf/s should return the original measurement, apart from normal display rounding.