Convert Foot-pounds to Kilocalories
1 foot-pound is 0.000324 kcal. One foot-pound is exactly 0.00032404826681 kilocalories.
One foot-pound is 3.2405 × 10^-4 kilocalories. To convert foot-pounds to kilocalories, multiply by 3.2405 × 10^-4; to go the other way, divide by 3.2405 × 10^-4 or multiply by 3085.96. The factor is exact rather than rounded: it follows from NIST Special Publication 811. A pound-force acting through one foot.
Factor checked against the defining standard · How we check
- Foot-pounds × 3.2405 × 10^-4
value * 0.000324048266810 kcal
1 foot-pound in every energy unit
| Unit | Value | Exact factor |
|---|---|---|
| joules | 1.355817948 J | × 1.35581794833 |
| kilojoules | 0.001355817948 kJ | × 0.00135581794833 |
| calories | 0.3240482668 cal | × 0.32404826681 |
| kilocalories | 0.0003240482668 kcal | × 0.00032404826681 |
| watt-hours | 0.0003766160968 Wh | × 0.000376616096759 |
| kilowatt-hours | 0.0000003766160968 kWh | × 0.000000376616096759 |
| British thermal units | 0.001285067463 BTU | × 0.00128506746346 |
| foot-pounds (as entered) | 1 ft·lbf | — |
Factors are entered by hand from NIST Special Publication 811 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert foot-pounds to kilocalories?
- 1.Take the measurement in foot-pounds.
- 2.Multiply by 3.2405 × 10^-4 — that is how many kilocalories fit in one foot-pound.
- 3.To go back the other way, divide by 3.2405 × 10^-4, or multiply by 3085.96.
Worked example: 25 foot-pounds to kilocalories
- Formula
- ft·lbf × 3.2405 × 10^-4 = kcal
- Arithmetic
- 25 × 3.2405 × 10^-4 = 0.008101 kcal
- Answer
- 25 ft·lbf = 0.008101 kcal
The factor is rounded for display; the figure above is computed from the full value.
Foot-pounds to kilocalories conversion table
| Foot-pounds | Kilocalories |
|---|---|
| 1 ft·lbf | 0.000324 kcal |
| 2 ft·lbf | 0.000648 kcal |
| 3 ft·lbf | 0.000972 kcal |
| 4 ft·lbf | 0.001296 kcal |
| 5 ft·lbf | 0.00162 kcal |
| 6 ft·lbf | 0.001944 kcal |
| 7 ft·lbf | 0.002268 kcal |
| 8 ft·lbf | 0.002592 kcal |
| 9 ft·lbf | 0.002916 kcal |
| 10 ft·lbf | 0.00324 kcal |
| 12 ft·lbf | 0.003889 kcal |
| 15 ft·lbf | 0.004861 kcal |
| 20 ft·lbf | 0.006481 kcal |
| 25 ft·lbf | 0.008101 kcal |
| 50 ft·lbf | 0.016202 kcal |
| 100 ft·lbf | 0.032405 kcal |
| 200 ft·lbf | 0.06481 kcal |
| 300 ft·lbf | 0.097214 kcal |
| 500 ft·lbf | 0.162024 kcal |
| 1000 ft·lbf | 0.324048 kcal |
| 2000 ft·lbf | 0.648097 kcal |
| 5000 ft·lbf | 1.620241 kcal |
| 10000 ft·lbf | 3.240483 kcal |
What is a foot-pound?
A pound-force acting through one foot. The same arithmetic as the torque unit of that name, and a different quantity: this one is work done, not twist applied.
What is a kilocalorie?
A thousand small calories, and what a food label means by "Calories" with a capital C. A 2,000 calorie diet is 2,000 kcal, or 8.4 megajoules.
How many kilocalories are in a foot-pound?
One foot-pound is 3.2405 × 10^-4 kilocalories. Going the other way, one kilocalorie is 3085.96 foot-pounds. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every energy unit here
| Unit | Symbol | One of these is |
|---|---|---|
| Joules | J | the base unit |
| Kilojoules | kJ | 1000 joule |
| Calories | cal | 4.184 joule |
| Kilocalories | kcal | 4184 joule |
| Watt-hours | Wh | 3600 joule |
| Kilowatt-hours | kWh | 3600000 joule |
| British thermal units | BTU | 1055.0559 joule |
| Foot-pounds | ft·lbf | 1.3558179 joule |
Source: NIST Special Publication 811 — the thermochemical calorie is exactly 4.184 J
Questions people actually ask
- How many kilocalories are in a foot-pound?
- 3.2405 × 10^-4. A thousand small calories, and what a food label means by "Calories" with a capital C. A 2,000 calorie diet is 2,000 kcal, or 8.4 megajoules.
- How do I convert kilocalories back to foot-pounds?
- Divide by 3.2405 × 10^-4, or multiply by 3085.96 — they are the same operation.
Other energy conversions
Kilocalories to foot-pounds — the same conversion the other way.