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Energy
Foot-pounds to Kilowatt-hours
Convert foot-pounds (ft·lb) to kilowatt-hours (kWh). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 ft·lb = 3.7662e-7 kWh
Foot-pounds to Kilowatt-hours Conversion Table
Common values, ready to copy:
| foot-pounds | kilowatt-hours |
|---|---|
| 1 ft·lb | 3.7662e-7 kWh |
| 2 ft·lb | 7.5323e-7 kWh |
| 5 ft·lb | 1.8831e-6 kWh |
| 10 ft·lb | 3.7662e-6 kWh |
| 25 ft·lb | 9.4154e-6 kWh |
| 50 ft·lb | 1.8831e-5 kWh |
| 100 ft·lb | 3.7662e-5 kWh |
| 1,000 ft·lb | 0.000377 kWh |
Formula
kilowatt-hours = foot-pounds × 3.76616667e-7
Energy uses the SI joule. Food calories (kcal) are 1,000 small calories: 1 kcal = 4,184 J. 1 kWh = 3.6 MJ = 3,600,000 J. 1 BTU = 1,055.06 J.
About Foot-pounds and Kilowatt-hours
Foot-pounds (ft·lb): The work done lifting one pound through one foot against gravity; 1 ft·lb = 1.35582 J. Common uses: Torque specifications in US automotive contexts (lug nuts, bolt torque), and some US engineering work.
Kilowatt-hours (kWh): A thousand watt-hours, or 3.6 MJ; the standard utility billing unit for residential and commercial electricity. Common uses: Electricity bills, residential and EV battery capacity (a typical EV battery is 50-100 kWh), and home solar generation.
How the conversion works
Energy uses the SI joule. Food calories (kcal) are 1,000 small calories: 1 kcal = 4,184 J. 1 kWh = 3.6 MJ = 3,600,000 J. 1 BTU = 1,055.06 J.
The exact relationship is kilowatt-hours = foot-pounds × 3.76616667e-7, which the calculator at the top of this page applies in both directions. Type into either field and the other updates immediately.
When this conversion matters
Converting between foot-pounds and kilowatt-hours comes up wherever energy measurements move between systems — from one country's conventions to another's, from a scientific reference to a practical specification, or from one industry's working unit to another's. The calculator and reference table above cover the everyday range; for unusual values you can type any number into either field.