Feet-Pound to Watt Hour Converter
Energy · unit-converter
Convert Feet-Pound to Watt Hour with fixed input and output units, a step-by-step formula line, and reference tables. Factors are joule-based; food energy uses thermochemical calories. The full Energy Converter also includes MMBtu, toe, thermal kWh, and MeV/GeV.
Calculator
From: Feet-Pound (ftlb)
To: Watt Hour (wh)
About Feet-Pound
The feet-pound is a mechanical work unit common in US torque and ballistics contexts.
About Watt Hour
One watt-hour is 3,600 J—the energy from 1 W for one hour. Common for small batteries and device ratings.
How to convert feet-pounds to watt hours
1 feet-pound is equal to 0.00037661609676 watt hour when both are expressed in joule-equivalents:
1 ftlb = (1.3558179483314003 J ÷ 3,600 J) wh = 0.00037661609676 wh
Each feet-pound is defined as 1.3558179483314003 J and each watt hour as 3,600 J in this tool, so one ftlb equals 1.3558179483314003 ÷ 3,600 wh = 0.00037661609676 wh.
Let d(ftlb) be the numeric amount in Feet-Pound (ftlb), and d(wh) the amount in Watt Hour (wh). Then:
d(wh) = d(ftlb) × (1.3558179483314003 / 3,600)
Equivalently, divide by how many ftlb fit into one wh (joules per wh divided by joules per ftlb):
d(wh) = d(ftlb) ÷ 2655.22373739815521
Or: watt hour = feet-pound ÷ 2655.22373739815521
Examples
Example #1: Convert 1 ftlb to watt hour
1 ftlb = 1 ftlb × (1.3558179483314003/3,600) wh = 0.0003766161 wh
1 ftlb = 1 ftlb ÷ 2655.22373739815521 = 0.0003766161 wh
Example #2: Convert 10 ftlb to watt hour
10 ftlb = 10 ftlb × (1.3558179483314003/3,600) wh = 0.003766161 wh
10 ftlb = 10 ftlb ÷ 2655.22373739815521 = 0.003766161 wh
Summary
To convert Feet-Pound to Watt Hour, multiply the value in ftlb by the ratio of joules per ftlb divided by joules per wh. Equivalently: value_wh = value_ftlb × (1.3558179483314003 / 3600). Numerically, 1 ftlb equals 0.0003766160967587223 wh.
Relationship context
You are converting between US / imperial engineering units (BTU, therm, ft·lb) (Feet-Pounds) and electrical energy (watt-hours) (Watt Hours). All values are mapped through joules first. The numeric factor is 3.766161e-4.
Conversion tables
| Feet-Pound (ftlb) | Watt Hour (wh) |
|---|---|
| 0.1 | 0.0000376616 |
| 1 | 0.0003766161 |
| 2 | 0.0007532322 |
| 3 | 0.0011298483 |
| 4 | 0.0015064644 |
| 5 | 0.0018830805 |
| 6 | 0.0022596966 |
| 7 | 0.0026363127 |
| 8 | 0.0030129288 |
| 9 | 0.0033895449 |
| Feet-Pound (ftlb) | Watt Hour (wh) |
|---|---|
| 10 | 0.003766161 |
| 20 | 0.0075323219 |
| 30 | 0.0112984829 |
| 40 | 0.0150646439 |
| 50 | 0.0188308048 |
| 60 | 0.0225969658 |
| 70 | 0.0263631268 |
| 80 | 0.0301292877 |
| 90 | 0.0338954487 |
| 100 | 0.0376616097 |