⚡ Energy & Calories

Convert calories to joules (Energy)

1 cal = 4.184 J. Convert calories to joules instantly with the converter below.

Value

Result —

How to convert

Multiply the value (cal) by 4.184 to get J — example: 5 cal = 20.92 J

Conversion table

Calories to joules conversion table
Calorie	Joule
1 cal	4.184 J
2 cal	8.368 J
5 cal	20.92 J
10 cal	41.84 J
50 cal	209.2 J
100 cal	418.4 J
250 cal	1,046 J
500 cal	2,092 J
1,000 cal	4,184 J
2,000 cal	8,368 J

About the units

Calorie — symbol cal.
Joule — symbol J.

The small calorie is the thermochemical calorie = 4.184 J; food calories are the large calorie (kilocalorie).

Frequently asked questions

How many joules are in 1 calorie?

1 cal = 4.184 J.

How do I convert calories to joules?

Multiply the value (cal) by 4.184 to get J.

How many calories are in 1 joule?

1 J = 0.239006 cal.

Which definition does this conversion use?

The small calorie is the thermochemical calorie = 4.184 J; food calories are the large calorie (kilocalorie).

Related conversions

Reverse: joules to calories

Calories to other units

calories to kilojoules calories to kilocalories calories to watt-hours calories to kilowatt-hours calories to BTU

Other units to joules

kilojoules to joules kilocalories to joules watt-hours to joules kilowatt-hours to joules BTU to joules

All Energy & Calories conversions · The full tool in Zayenha Tools