Power and Energy
ft·lbf/stoW
Convert foot-pounds force per second (ft·lbf/s) to watts (W).
Factor1 ft·lbf/s = 1.355818 W
Converter
ft·lbf/s
Accepts numbers or expressions, e.g. 150 + 14.7
Result
W
Rendered to 6 significant figures.
Formula
Formula
W = ft·lbf/s × 1.355818
Multiply any value in foot-pounds force per second by 1.355818 to obtain the value in watts.
Worked example
Convert 1000 ft·lbf/s to W.
- 01Start with 1000 ft·lbf/s.
- 02Multiply by the conversion factor: 1000 × 1.355818 = 1355.82 W.
Result1000 ft·lbf/s = 1355.82 W
Conversion table
| ft·lbf/s | W |
|---|---|
| 1 | 1.3558 |
| 2 | 2.7116 |
| 5 | 6.7791 |
| 10 | 13.558 |
| 20 | 27.116 |
| 50 | 67.791 |
| 100 | 135.58 |
| 200 | 271.16 |
| 500 | 677.91 |
| 1000 | 1355.8 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from ft·lbf/s to W?
1 ft·lbf/s equals 1.355818 W. To convert, multiply the value in foot-pounds force per second by 1.355818.
How do I convert 1 ft·lbf/s to W?
1 ft·lbf/s = 1.35582 W. For any value, multiply by 1.355818.
How do I convert W back to ft·lbf/s?
Divide by the same factor — or equivalently, multiply by 0.7375621. So 1 W = 0.737562 ft·lbf/s.
When would I need to convert foot-pound force per second to watt?
Power conversions are common when comparing motor ratings (often kW or hp), thermal duty (BTU/hr or kW), and utility consumption in mixed-unit projects.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).