This converter turns foot-pounds into watt-hours instantly, using the exact factor 1 foot-pound = 0.0003766160968 watt-hours. Type any number and the result updates as you go — nothing is sent to a server, so the arithmetic happens entirely in your browser.
Energy unit used in US ballistics and mechanical work. The battery-capacity unit for laptops, e-bikes and power banks.
Because the relationship is a simple proportion, one multiplication does the whole job. The table further down gives pre-computed values for the amounts people look up most often, and the result panel also reports the reverse conversion so you can check the figure both ways.
The formula
foot-pounds- The amount you are converting, measured in foot-pounds
0.0003766160968- The exact number of watt-hours in one foot-pound
watt-hours- The converted result
How it works, step by step
- Enter the number of foot-pounds you want to convert.
- The value is multiplied by 0.0003766160968, the exact conversion factor.
- The result is displayed in watt-hours, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 foot-pounds
Multiply 5 by 0.0003766161. That gives 0.001883 watt-hours. A quick sanity check: one foot-pound is smaller than one watt-hour, so the number should get smaller — and it does.
Converting 72 foot-pounds
72 × 0.0003766161 = 0.027116 watt-hours. Working backwards, 0.027116 ÷ 0.0003766161 returns 72 foot-pounds, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many watt-hours are in one foot-pound?
Exactly 0.0003766160968. Every conversion on this page is that single number multiplied by your input, so the result carries no rounding error beyond what is shown.
What is the formula to convert foot-pounds to watt-hours?
Watt-Hours = foot-pounds × 0.0003766160968. To reverse it, divide instead: foot-pounds = watt-hours ÷ 0.0003766160968, which is the same as multiplying by 2655.223737.
Is the foot-pound bigger than the watt-hour?
No. One foot-pound is only 0.000376616 of a watt-hour, so the watt-hour is the larger unit.
Why does my answer differ slightly from other foot-pounds to watt-hours converters?
Most differences come from rounding the factor too early. This tool keeps full double precision through the calculation and only rounds at the final display step, and it also shows the unrounded value so you can see exactly where any difference appears.
What is a foot-pound?
Energy unit used in US ballistics and mechanical work.
What is a watt-hour?
The battery-capacity unit for laptops, e-bikes and power banks.
Foot-Pounds to watt-hours reference table
| Foot-Pounds | Watt-Hours |
|---|---|
| 0.5 ft·lb | 0.000188 Wh |
| 1 ft·lb | 0.000377 Wh |
| 2 ft·lb | 0.000753 Wh |
| 3 ft·lb | 0.00113 Wh |
| 5 ft·lb | 0.001883 Wh |
| 10 ft·lb | 0.003766 Wh |
| 15 ft·lb | 0.005649 Wh |
| 20 ft·lb | 0.007532 Wh |
| 25 ft·lb | 0.009415 Wh |
| 50 ft·lb | 0.018831 Wh |
| 75 ft·lb | 0.028246 Wh |
| 100 ft·lb | 0.037662 Wh |
| 250 ft·lb | 0.094154 Wh |
| 500 ft·lb | 0.188308 Wh |
| 1000 ft·lb | 0.376616 Wh |
Exact factor: 1 foot-pound = 0.0003766160968 watt-hours. Values rounded for display.