Mechanical power rate.
Foot-pounds per second to Milliwatts Converter — ft-lb/s to mW
Convert Foot-pound per second (ft-lb/s) to Milliwatt (mW) using the exact conversion factor (1 foot-pound per second = 1,355.817948 milliwatt). See the formula, worked examples, and conversion table.
Foot-pounds per second to Milliwatts converter
Converter
Engineering Converter
Convert common stress, force, torque, power, and energy units used in engineering.
Context values
Some unit families need one extra value for a physically accurate result.
Milliwatt is 0.001 watt units.
Result = input x 1.355817948 / 0.001.
Power units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Foot-pounds per second to Milliwatts
Foot-pound per second and Milliwatt both measure a quantity used in structural or mechanical engineering — commonly stress, pressure, force, torque, power, or energy — where converting between the unit conventions used in different regions, industries, or equipment specifications is a routine part of design work. Specifically: Mechanical power rate, and milliwatt is 0.001 watt units.
Formula
milliwatts = foot-pounds per second × 1355.81794833
This factor comes from each unit's defined relationship to the category's base unit: 1 foot-pound per second equals 1.35581794833 base units, and 1 milliwatt equals 0.001 base units, so dividing one by the other gives the direct foot-pound per second-to-milliwatt factor of 1355.81794833.
Simple example
1 ft-lb/s × 1355.817948 = 1,355.817948 mW
1 foot-pound per second = 1,355.817948 milliwatts.
Real-world example
100 ft-lb/s × 1355.817948 = 135,581.7948 mW
100 foot-pounds per second = 135,581.7948 milliwatts.
Conversion table
| Foot-pound per second (ft-lb/s) | Milliwatt (mW) |
|---|---|
| 1 ft-lb/s | 1,355.817948 mW |
| 10 ft-lb/s | 13,558.17948 mW |
| 50 ft-lb/s | 67,790.89742 mW |
| 100 ft-lb/s | 135,581.7948 mW |
| 500 ft-lb/s | 677,908.9742 mW |
| 1,000 ft-lb/s | 1,355,817.948 mW |
Reverse conversion: Milliwatt to Foot-pound per second
1 mW × 0.0007375621493 = 0.0007375621 ft-lb/s
1 milliwatt = 0.0007375621 foot-pounds per second.
foot-pounds per second = milliwatts × 0.000737562149277
For a page dedicated to this direction, see Milliwatt to Foot-pound per second.
Understanding the Foot-pound per second (ft-lb/s)
Mechanical power rate.
Understanding the Milliwatt (mW)
Milliwatt is 0.001 watt units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milliwatts are in 1 foot-pound per second?
1 foot-pound per second equals 1,355.817948 milliwatts, using the exact defined conversion factor rather than an estimate.
How do I convert foot-pound per second to milliwatt?
Multiply the foot-pound per second value by 1355.817948. The converter above does this instantly to whatever precision you set.
How do I convert milliwatt back to foot-pound per second?
Use the reverse factor: 1 milliwatt equals 0.0007375621 foot-pounds per second. You can also use the swap control in the converter above to flip the direction instantly.
What is a foot-pound per second?
Foot-pound per second (ft-lb/s) is a unit of engineering.
What is a milliwatt?
Milliwatt (mW) is a unit of engineering.
Is the foot-pound per second to milliwatt conversion exact?
Yes. Both foot-pound per second and milliwatt are defined by fixed standards rather than physical artifacts, so the factor of 1355.817948 used above is exact to as many digits as you choose to display.
Why do engineering unit conventions vary so much by region and industry?
Pressure, force, and stress can be expressed in metric (pascal, newton), US customary (psi, pound-force), or older and industry-specific units (atmosphere, torr, kip) depending on the country, industry, and even the equipment manufacturer, which is why engineers routinely need to convert between them when working across specs from different sources.