Convert Watts to Foot-pounds per Second
1 watt (W) equals 0.7375621493 foot-pounds per second (ft·lbf/s).
1 W = 0.7375621493 ft·lbf/s
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk watt to foot-pound per second converter to paste a column from Excel.
How to Convert Watt to Foot-pound per Second
- 1 W = 0.7375621493 ft·lbf/s
- 1 ft·lbf/s = 1.355817948 W
- Example: convert 15 W to ft·lbf/s: 15 W = 15 × 0.7375621493 ft·lbf/s = 11.06343224 ft·lbf/s
Formula
ft·lbf/s = W × 0.7375621492773
or ft·lbf/s = W ÷ 1.355817948331
Derivation from SI units:
- 1 W = 1 J/s = 1 kg·m²·s⁻³
- 1 ft·lbf/s = 1.3558179483314 W
Both units are defined exactly, so the factor is exact. Watt definition: watt; Foot-pound per Second definition: foot-pound per second.
Worked examples
- A reading of 100 W converts to 73.75621493 ft·lbf/s.
100 W × 0.7375621493 = 73.75621493 ft·lbf/s - A value of 1500 W is 1106.343224 ft·lbf/s.
1500 W × 0.7375621493 = 1106.343224 ft·lbf/s
Watt to Foot-pound per Second conversion table
| Watts (W) | Foot-pounds per Second (ft·lbf/s) |
|---|---|
| 1 W | 0.7375621493 ft·lbf/s |
| 5 W | 3.687810746 ft·lbf/s |
| 10 W | 7.375621493 ft·lbf/s |
| 40 W | 29.50248597 ft·lbf/s |
| 60 W | 44.25372896 ft·lbf/s |
| 100 W | 73.75621493 ft·lbf/s |
| 250 W | 184.3905373 ft·lbf/s |
| 500 W | 368.7810746 ft·lbf/s |
| 746 W | 550.2213634 ft·lbf/s |
| 1000 W | 737.5621493 ft·lbf/s |
| 1500 W | 1106.343224 ft·lbf/s |
| 2000 W | 1475.124299 ft·lbf/s |
| 3500 W | 2581.467522 ft·lbf/s |
| 5000 W | 3687.810746 ft·lbf/s |
| 10000 W | 7375.621493 ft·lbf/s |
Where it's used
Watts are used for electrical appliance ratings, while foot-pounds per second appear in mechanics problems in US units. Both measure power (energy per unit time), so the conversion is a fixed factor.
Watt to other power units
| Conversion | 1 W equals |
|---|---|
| watt to milliwatt | 1000 mW |
| watt to kilowatt | 0.001 kW |
| watt to megawatt | 0.000001 MW |
| watt to horsepower | 0.00134102209 hp |
| watt to metric horsepower | 0.001359621617 PS |
| watt to BTU per hour | 3.412141633 BTU/h |
| watt to refrigeration ton | 0.0002843451361 TR |
| watt to kilocalorie per hour | 0.8598452279 kcal/h |
| watt to foot-pound per second | 0.7375621493 ft·lbf/s |
Frequently asked questions
How many foot-pounds per second are in 1 watt?
1 W = 0.7375621493 ft·lbf/s.
How do I convert watts to foot-pounds per second?
Multiply the value in W by 0.7375621493, or divide it by 1.355817948. For example, 15 W × 0.7375621493 = 11.06343224 ft·lbf/s.
Is the W to ft·lbf/s conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4, coherent derived units with special names.
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "foot pound-force per second".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Watts to Foot-pounds per Second. Retrieved October 17, 2026, from https://scientificconverters.com/power/watts-to-foot-pounds-per-second/
IEEE
Scientific Converters, "Convert Watts to Foot-pounds per Second," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/power/watts-to-foot-pounds-per-second/