Work from one pound-force over one foot.
Foot-pounds to Kilocalories Converter — ft-lb to kcal
Convert Foot-pound (ft-lb) to Kilocalorie (kcal) using the exact conversion factor (1 foot-pound = 0.0003240483 kilocalorie). See the formula, worked examples, and conversion table.
Foot-pounds to Kilocalories converter
Converter
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Context values
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A kilocalorie is 1,000 calories.
Result = input x 1.355817948 / 4184.
Energy uses the joule as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Foot-pounds to Kilocalories
Foot-pound and Kilocalorie both measure energy, and the conversion is especially useful for comparing nutrition labels (kilocalories) against scientific energy figures (joules). Specifically: Work from one pound-force over one foot, and a kilocalorie is 1,000 calories.
Formula
kilocalories = foot-pounds × 0.00032404826681
This factor comes from each unit's defined relationship to the category's base unit: 1 foot-pound equals 1.35581794833 base units, and 1 kilocalorie equals 4184 base units, so dividing one by the other gives the direct foot-pound-to-kilocalorie factor of 0.00032404826681.
Simple example
1 ft-lb × 0.0003240482668 = 0.0003240483 kcal
1 foot-pound = 0.0003240483 kilocalories.
Real-world example
100 ft-lb × 0.0003240482668 = 0.0324048267 kcal
100 foot-pounds = 0.0324048267 kilocalories.
Conversion table
| Foot-pound (ft-lb) | Kilocalorie (kcal) |
|---|---|
| 1 ft-lb | 0.0003240483 kcal |
| 10 ft-lb | 0.0032404827 kcal |
| 100 ft-lb | 0.0324048267 kcal |
| 500 ft-lb | 0.1620241334 kcal |
| 1,000 ft-lb | 0.3240482668 kcal |
| 2,000 ft-lb | 0.6480965336 kcal |
Reverse conversion: Kilocalorie to Foot-pound
0.0003240483 kcal × 3085.960033 = 1.000000102 ft-lb
0.0003240483 kilocalories = 1.000000102 foot-pounds.
foot-pounds = kilocalories × 3085.96003258
For a page dedicated to this direction, see Kilocalorie to Foot-pound.
Understanding the Foot-pound (ft-lb)
Work from one pound-force over one foot.
Understanding the Kilocalorie (kcal)
A kilocalorie is 1,000 calories.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilocalories are in 1 foot-pound?
1 foot-pound equals 0.0003240483 kilocalories, using the exact defined conversion factor rather than an estimate.
How do I convert foot-pound to kilocalorie?
Multiply the foot-pound value by 0.0003240482668. The converter above does this instantly to whatever precision you set.
How do I convert kilocalorie back to foot-pound?
Use the reverse factor: 1 kilocalorie equals 3,085.960033 foot-pounds. You can also use the swap control in the converter above to flip the direction instantly.
What is a foot-pound?
Foot-pound (ft-lb) is a unit of energy.
What is a kilocalorie?
Kilocalorie (kcal) is a unit of energy.
Is the foot-pound to kilocalorie conversion exact?
Yes. Both foot-pound and kilocalorie are defined by fixed standards rather than physical artifacts, so the factor of 0.0003240482668 used above is exact to as many digits as you choose to display.