Foot-Pound to Kilocalorie Converter

Energy Converter

27 units available

Decimals:

From

To

0.000324

1 ft·lbf = 0.000324 kcal

Formula:

kcal = ft·lbf × 0.0003240483

With your value: 1 ft·lbf = 0.00032405 kcal

How big is that?

Everyday references on a logarithmic scale, all expressed in foot-pound so you can sanity-check the result.

Heartbeat (1/1.4 your value)0.738 ft·lbf

Your value1.00 ft·lbf

AA battery charge (7.4e+3× your value)7.38e+3 ft·lbf

Slice of bread (2.1e+5× your value)2.07e+5 ft·lbf

Daily food intake (6.2e+6× your value)6.20e+6 ft·lbf

Litre of petrol (2.5e+7× your value)2.52e+7 ft·lbf

Other Foot-Pound to Kilocalorie conversions

2 ft·lbf to kcal 3 ft·lbf to kcal 4 ft·lbf to kcal 5 ft·lbf to kcal 6 ft·lbf to kcal 7 ft·lbf to kcal 8 ft·lbf to kcal

Foot-Pound to Kilocalorie Conversion Table

Foot-Pound (ft·lbf)	Kilocalorie (kcal)
0.5	0.000162
1	0.000324
2	0.000648
5	0.00162
10	0.00324
15	0.004861
20	0.006481
25	0.008101
50	0.016202
100	0.032405
250	0.081012
500	0.162024
1000	0.324048

Kilocalorie to Foot-Pound Conversion Table

Kilocalorie (kcal)	Foot-Pound (ft·lbf)
0.5	1,542.980016
1	3,085.960033
2	6,171.920065
5	15,429.800163
10	30,859.600326
15	46,289.40049
20	61,719.200653
25	77,149.000816
50	154,298.001632
100	308,596.003265
250	771,490.008162
500	1,542,980.016324
1000	3,085,960.032648

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Foot-Pound (ft·lbf)

Energy

Exact conversion

Derived from the joule (1 J = 1 kg·m²/s²). Thermochemical and IT calories, BTU and kWh are exact defined multiples.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Kilocalorie (kcal)

Energy

Exact conversion

Derived from the joule (1 J = 1 kg·m²/s²). Thermochemical and IT calories, BTU and kWh are exact defined multiples.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Foot-Pound to Kilocalorie

To convert from Foot-Pound (ft·lbf) to Kilocalorie (kcal), multiply the value by 0.0003240483.

Formula: kcal = ft·lbf × 0.0003240483

Reverse: ft·lbf = kcal × 3,085.9600326475

Step-by-Step Example

Start with your value in Foot-Pound. For example: 5 ft·lbf
Multiply by the conversion factor: 5 x 0.0003240483
The result is: 0.00162 kcal

About Foot-Pound

The foot-pound (ft·lbf) is a unit of energy and work. One foot-pound equals 1.355817948 joules. UnitConvertLab converts it against every other energy unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: energy calculations, engineering and science, education.

About Kilocalorie

The kilocalorie (food Calorie) equals 1,000 calories or 4,184 joules. It is the standard unit for food energy content.

Common uses: nutrition, diet, food labeling.

Frequently Asked Questions

How many Kilocalorie are in 1 Foot-Pound?

There are exactly 0.0003240483 Kilocalorie in 1 Foot-Pound. This means the conversion factor from Foot-Pound to Kilocalorie is 0.0003240483.

What is the formula to convert Foot-Pound to Kilocalorie?

The formula to convert Foot-Pound to Kilocalorie is: kcal = ft·lbf × 0.0003240483. For example, to convert 10 Foot-Pound to Kilocalorie, you would multiply 10 by 0.0003240483.

What is a Foot-Pound?