Foot-pound per Second to Kilowatt Converter
Power · unit-converter
Convert Foot-pound per Second to Kilowatt with a fixed input and output unit, step-by-step formula line, and reference tables. Linear units use SI watt definitions; mechanical hp uses 550 ft·lbf/s; BTU/h uses the IT BTU; dBm/dBW are logarithmic relative to 1 mW and 1 W. The full Power Converter also includes PS/CV, TR, kVA/MVA, and ft·lb/s.
Calculator
From: Foot-pound per Second (ft_lb_s)
To: Kilowatt (kw)
About Foot-pound per Second
Foot-pounds per second is a mechanical power rate: 1 ft·lb/s = 1.3558179483314004 W (exactly, from the international foot definition).
About Kilowatt
One kilowatt is 1,000 W. Motor, heater, and grid-scale loads are often rated in kW.
How to convert foot-pounds per second to kilowatts
1 foot-pound per second is equal to 0.00135581794833 kilowatt when both are expressed in watt-equivalents:
1 ft_lb_s = (1.3558179483314003 W ÷ 1,000 W) kw = 0.00135581794833 kw
Each foot-pound per second is defined as 1.3558179483314003 W and each kilowatt as 1,000 W in this tool, so one ft_lb_s equals 1.3558179483314003 ÷ 1,000 kw = 0.00135581794833 kw.
Let d(ft_lb_s) be the numeric value in Foot-pound per Second (ft_lb_s), and d(kw) the value in Kilowatt (kw). Then:
d(kw) = d(ft_lb_s) × (1.3558179483314003 / 1,000)
Equivalently, divide by how many ft_lb_s fit into one kw (watts per kw divided by watts per ft_lb_s):
d(kw) = d(ft_lb_s) ÷ 737.56214927726535
Or: kilowatt = foot-pound per second ÷ 737.56214927726535
Examples
Example #1: Convert 1 ft_lb_s to kilowatt
1 ft_lb_s = 1 ft_lb_s × (1.3558179483314003/1,000) kw = 0.0013558179 kw
1 ft_lb_s = 1 ft_lb_s ÷ 737.56214927726535 = 0.0013558179 kw
Intermediate watts: 1.3558179483 W
Example #2: Convert 10 ft_lb_s to kilowatt
10 ft_lb_s = 10 ft_lb_s × (1.3558179483314003/1,000) kw = 0.0135581795 kw
10 ft_lb_s = 10 ft_lb_s ÷ 737.56214927726535 = 0.0135581795 kw
Intermediate watts: 13.5581794833 W
Summary
To convert Foot-pound per Second to Kilowatt, multiply the value in ft_lb_s by the ratio of watts per ft_lb_s divided by watts per kw. Equivalently: value_kw = value_ft_lb_s × (1.3558179483314003 / 1000). Numerically, 1 ft_lb_s equals 0.0013558179483314004 kw.
Relationship context
You are converting between mechanical power (horsepower, ft·lb/s) (Foot-pounds per Second) and SI / decimal power (watts and prefixes) (Kilowatts). All linear values are mapped through watts first. The numeric factor is 1.355818e-3.
Conversion tables
| Foot-pound per Second (ft_lb_s) | Kilowatt (kw) |
|---|---|
| 0.1 | 0.0001355818 |
| 1 | 0.0013558179 |
| 2 | 0.0027116359 |
| 3 | 0.0040674538 |
| 4 | 0.0054232718 |
| 5 | 0.0067790897 |
| 6 | 0.0081349077 |
| 7 | 0.0094907256 |
| 8 | 0.0108465436 |
| 9 | 0.0122023615 |
| Foot-pound per Second (ft_lb_s) | Kilowatt (kw) |
|---|---|
| 10 | 0.0135581795 |
| 20 | 0.027116359 |
| 30 | 0.0406745384 |
| 40 | 0.0542327179 |
| 50 | 0.0677908974 |
| 60 | 0.0813490769 |
| 70 | 0.0949072564 |
| 80 | 0.1084654359 |
| 90 | 0.1220236154 |
| 100 | 0.1355817948 |