Foot-pounds to Watt-hours
Convert foot-pounds to watt-hours instantly. 1 ft·lb = 0.0003766161 Wh. Includes the exact factor, a conversion table of common values and the definition of both units.
How to convert foot-pounds to watt-hours
To convert foot-pounds to watt-hours, divide by 2655.2237373982 (multiply by 0.0003766161). The relationship is fixed, so the same factor works for any quantity — there is nothing to look up and nothing that changes with temperature, location or context.
Wh = ft·lb × 0.0003766161
Foot-pounds to Watt-hours conversion table
The values people look up most often, rounded for reading. Use the calculator above for anything in between.
| Foot-pounds | Watt-hours |
|---|---|
| 1 ft·lb | 0.0003766 Wh |
| 2 ft·lb | 0.0007532 Wh |
| 3 ft·lb | 0.00113 Wh |
| 5 ft·lb | 0.001883 Wh |
| 10 ft·lb | 0.003766 Wh |
| 20 ft·lb | 0.007532 Wh |
| 25 ft·lb | 0.009415 Wh |
| 50 ft·lb | 0.018831 Wh |
| 100 ft·lb | 0.037662 Wh |
| 500 ft·lb | 0.188308 Wh |
| 1,000 ft·lb | 0.376616 Wh |
What is a foot-pound?
The energy of one pound-force acting through one foot.
What is a watt-hour?
One watt sustained for one hour. Battery capacity is quoted this way.
The formula
Wh = ft·lb × 0.0003766161
Every result on this page comes from this formula. Nothing is rounded until the final display, so figures match a spreadsheet to the cent.
How to use the Foot-pounds to Watt-hours
- Type the number of foot-pounds you want to convert.
- Read the result in watt-hours straight away — there is no button to press.
- Check the table below for the values that come up most often, or reverse the conversion with the linked watt-hours to foot-pounds page.
Foot-pounds to Watt-hours — frequently asked questions
How many watt-hours are in a foot-pound?
One foot-pound equals 0.0003766161 Wh. Wh = ft·lb × 0.0003766161
What is the formula to convert foot-pounds to watt-hours?
The formula is Wh = ft·lb × 0.0003766161. It is an exact definition rather than an approximation, so the conversion never drifts no matter how large the number.
How do I convert watt-hours back to foot-pounds?
Divide instead of multiplying: one watt-hour is 2655.2237373982 ft·lb. The reverse converter is linked in the related tools list.
Is this conversion exact?
Yes. Both units are defined against the same base unit by international agreement, so the factor is exact — any rounding you see is only in the display, which you can widen by entering more decimal places.
Is this foot-pounds to watt-hours free to use?
Yes. Every calculator on the site is free, needs no sign-up, and runs entirely in your browser, so your figures never leave your device.
What people search for
This page answers each of these searches. They are the exact phrases visitors use to find the foot-pounds to watt-hours.
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About this calculator
Written and reviewed by The Samsung Calculator editorial team. Every calculator is written against a published formula, reviewed against at least one independent reference implementation, and dated when it changes.
Last reviewed August 19, 2026 · Calculation runs client-side · No data collected · Report an error