Femtowatt is 1e-15 watt units.
Femtowatts to Foot-pounds per second Converter — fW to ft-lb/s
Convert Femtowatt (fW) to Foot-pound per second (ft-lb/s) using the exact conversion factor (1 femtowatt = 7.375621e-16 foot-pound per second). See the formula, worked examples, and conversion table.
Femtowatts to Foot-pounds per second converter
Converter
Power Converter
Convert watts, horsepower, refrigeration tons, BTU per hour, and engineering power units.
Context values
Some unit families need one extra value for a physically accurate result.
Mechanical power rate.
Result = input x 1e-15 / 1.355817948.
Power uses the watt as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Femtowatts to Foot-pounds per second
Femtowatt and Foot-pound per second both describe power output, and the conversion is a routine part of comparing an engine or motor's spec sheet across countries that use different power units. Specifically: Femtowatt is 1e-15 watt units, and mechanical power rate.
Formula
foot-pounds per second = femtowatts × 7.375621e-16
This factor comes from each unit's defined relationship to the category's base unit: 1 femtowatt equals 1e-15 base units, and 1 foot-pound per second equals 1.35581794833 base units, so dividing one by the other gives the direct femtowatt-to-foot-pound per second factor of 7.375621e-16.
Simple example
1 fW × 7.375621e-16 = 7.375621e-16 ft-lb/s
1 femtowatt = 7.375621e-16 foot-pounds per second.
Real-world example
100 fW × 7.375621e-16 = 7.375621e-14 ft-lb/s
100 femtowatts = 7.375621e-14 foot-pounds per second.
Conversion table
| Femtowatt (fW) | Foot-pound per second (ft-lb/s) |
|---|---|
| 1 fW | 7.375621e-16 ft-lb/s |
| 10 fW | 7.375621e-15 ft-lb/s |
| 100 fW | 7.375621e-14 ft-lb/s |
| 500 fW | 3.687811e-13 ft-lb/s |
| 1,000 fW | 7.375621e-13 ft-lb/s |
| 5,000 fW | 3.687811e-12 ft-lb/s |
Reverse conversion: Foot-pound per second to Femtowatt
7.375621e-16 ft-lb/s × 1.355818e+15 = 0.9999999332 fW
7.375621e-16 foot-pounds per second = 0.9999999332 femtowatts.
femtowatts = foot-pounds per second × 1.355818e+15
For a page dedicated to this direction, see Foot-pound per second to Femtowatt.
Understanding the Femtowatt (fW)
Femtowatt is 1e-15 watt units.
Understanding the Foot-pound per second (ft-lb/s)
Mechanical power rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many foot-pounds per second are in 1 femtowatt?
1 femtowatt equals 7.375621e-16 foot-pounds per second, using the exact defined conversion factor rather than an estimate.
How do I convert femtowatt to foot-pound per second?
Multiply the femtowatt value by 7.375621e-16. The converter above does this instantly to whatever precision you set.
How do I convert foot-pound per second back to femtowatt?
Use the reverse factor: 1 foot-pound per second equals 1.355818e+15 femtowatts. You can also use the swap control in the converter above to flip the direction instantly.
What is a femtowatt?
Femtowatt (fW) is a unit of power.
What is a foot-pound per second?
Foot-pound per second (ft-lb/s) is a unit of power.
Is the femtowatt to foot-pound per second conversion exact?
Yes. Both femtowatt and foot-pound per second are defined by fixed standards rather than physical artifacts, so the factor of 7.375621e-16 used above is exact to as many digits as you choose to display.