Foot-pound to Calorie Converter

One Foot-pound equals 0.3240482668 Calorie (1 ft-lb = 0.3240482668 cal). Multiply a Foot-pound value by 0.3240482668 to get the equivalent in Calorie. Use the calculator above for instant results, or follow the formula, worked examples, and reference table below.

Formula

cal = ft-lb × 0.3240482668

Multiply the Foot-pound value by 0.3240482668 to get the equivalent value in Calorie.

Example Conversions

1 Foot-pound (ft-lb)

0.3240482668 Calorie (cal)

5 Foot-pound (ft-lb)

1.620241334 Calorie (cal)

10 Foot-pound (ft-lb)

3.240482668 Calorie (cal)

25 Foot-pound (ft-lb)

8.10120667 Calorie (cal)

100 Foot-pound (ft-lb)

32.40482668 Calorie (cal)

Conversion Table

Common conversion values from Foot-pound to Calorie
Foot-pound (ft-lb) Calorie (cal)
0.1 0.03240482668
0.5 0.1620241334
1 0.3240482668
2 0.6480965336
5 1.620241334
10 3.240482668
25 8.10120667
50 16.20241334
100 32.40482668
250 81.0120667
500 162.0241334
1000 324.0482668

How to Convert Manually

Use these steps to convert Foot-pound values to Calorie without the calculator.

  1. Write down the value in Foot-pound (ft-lb) that you want to convert.
  2. Multiply that value by 0.3240482668.
  3. For example, 10 Foot-pound × 0.3240482668 = 3.240482668 Calorie.
  4. Label the result as Calorie (cal).

Relative Size Comparison

1 Foot-pound
1ft-lb
1 Calorie3.085960033Foot-pounds
1cal

This chart shows the visual difference in size between exactly one Foot-pound and one Calorie.

About Foot-pound and Calorie

The foot-pound is about 1.3558 joules — the work of one pound-force through one foot. US mechanical engineering and firearm muzzle energy use foot-pounds. The calorie (small calorie) is exactly 4.184 joules — the thermochemical convention, originally the heat to warm one gram of water by 1 °C. Chemistry uses it; food 'Calories' are actually kilocalories. One Foot-pound equals 0.3240482668 Calorie (1 ft-lb = 0.3240482668 cal). Foot-pound to Calorie conversion comes up most often in US mechanical engineering and in firearm muzzle energy, typically when figures need restating for chemistry heat calculations.

Precision and Rounding: Energy factors mix exact definitions (1 kWh = 3,600,000 J; 1 cal = 4.184 J thermochemical) with measured conventions (1 BTU ≈ 1,055.056 J). Nutrition and utility bills round to whole units; engineering heat calculations should keep the full factor until the final step.

Conversion factors per NIST Special Publication 811 and the BIPM SI Brochure (9th edition) (reference).

Worked Example

15 Foot-pound equals 4.860724002 Calorie.

15 ft-lb × 0.3240482668 = 4.860724002 cal

FAQ

How do I convert Foot-pound to Calorie?

Multiply the Foot-pound value by 0.3240482668 to get the equivalent value in Calorie.

What is the formula for Foot-pound to Calorie?

The formula is cal = ft-lb × 0.3240482668.

How many Calorie are in 1 Foot-pound?

1 Foot-pound equals 0.3240482668 Calorie.

Can I convert Calorie back to Foot-pound?

Yes. 1 Calorie equals 3.085960033 Foot-pound, and the related converter can reverse the calculation.

What are common names for Foot-pound and Calorie?

Foot-pound is shown as ft-lb and may also be searched as foot-pound, foot pound, ft·lb. Calorie is shown as cal and may also be searched as calorie, calories, small calorie.

Was this page helpful?

Let us know if this converter met your needs.

Related Converters