Convert Foot-pounds per Second to Milliwatts
1 foot-pound per second (ft·lbf/s) equals 1355.817948 milliwatts (mW).
1 ft·lbf/s = 1355.817948 mW
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk foot-pound per second to milliwatt converter to paste a column from Excel.
How to Convert Foot-pound per Second to Milliwatt
- 1 ft·lbf/s = 1355.817948 mW
- 1 mW = 0.0007375621493 ft·lbf/s
- Example: convert 15 ft·lbf/s to mW: 15 ft·lbf/s = 15 × 1355.817948 mW = 20337.26922 mW
Formula
mW = ft·lbf/s × 1355.817948331
Derivation from SI units:
- 1 ft·lbf/s = 1.3558179483314 W
- 1 mW = 10⁻³ W
- 1 ft·lbf/s = 1.355817948331 W ÷ 0.001 W per mW = 1355.817948331 mW
Both units are defined exactly, so the factor is exact. Foot-pound per Second definition: foot-pound per second; Milliwatt definition: milliwatt.
Worked examples
- A reading of 100 ft·lbf/s converts to 135581.7948 mW.
100 ft·lbf/s × 1355.817948 = 135581.7948 mW - A value of 1000 ft·lbf/s is 1355817.948 mW.
1000 ft·lbf/s × 1355.817948 = 1355817.948 mW
Foot-pound per Second to Milliwatt conversion table
| Foot-pounds per Second (ft·lbf/s) | Milliwatts (mW) |
|---|---|
| 1 ft·lbf/s | 1355.817948 mW |
| 10 ft·lbf/s | 13558.17948 mW |
| 50 ft·lbf/s | 67790.89742 mW |
| 100 ft·lbf/s | 135581.7948 mW |
| 250 ft·lbf/s | 338954.4871 mW |
| 550 ft·lbf/s | 745699.8716 mW |
| 1000 ft·lbf/s | 1355817.948 mW |
| 2750 ft·lbf/s | 3728499.358 mW |
| 5000 ft·lbf/s | 6779089.742 mW |
| 10000 ft·lbf/s | 13558179.48 mW |
Where it's used
Foot-pounds per Second are used for mechanics problems in US units, while milliwatts appear in laser pointer and diode output. Both measure power (energy per unit time), so the conversion is a fixed factor.
Foot-pound per Second to other power units
| Conversion | 1 ft·lbf/s equals |
|---|---|
| foot-pound per second to watt | 1.355817948 W |
| foot-pound per second to milliwatt | 1355.817948 mW |
| foot-pound per second to kilowatt | 0.001355817948 kW |
| foot-pound per second to megawatt | 0.000001355817948 MW |
| foot-pound per second to horsepower | 0.001818181818 hp |
| foot-pound per second to metric horsepower | 0.001843399392 PS |
| foot-pound per second to BTU per hour | 4.626242868 BTU/h |
| foot-pound per second to refrigeration ton | 0.000385520239 TR |
| foot-pound per second to kilocalorie per hour | 1.165793593 kcal/h |
Frequently asked questions
How many milliwatts are in 1 foot-pound per second?
1 ft·lbf/s = 1355.817948 mW.
How do I convert foot-pounds per second to milliwatts?
Multiply the value in ft·lbf/s by 1355.817948. For example, 15 ft·lbf/s × 1355.817948 = 20337.26922 mW.
Is the ft·lbf/s to mW 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
- 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".
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7, SI prefixes.
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 Foot-pounds per Second to Milliwatts. Retrieved October 17, 2026, from https://scientificconverters.com/power/foot-pounds-per-second-to-milliwatts/
IEEE
Scientific Converters, "Convert Foot-pounds per Second to Milliwatts," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/power/foot-pounds-per-second-to-milliwatts/