Calories (thermochemical) to Joules – calorie (thermochemical) to joule Converter

1 cal = 4.184 J

calories (thermochemical) (cal)

joules (J)4.184

Formula

J = cal × 4.184

Calories (thermochemical) to joules conversion table

calories (thermochemical) (cal)	joules (J)
0.5 cal	2.092 J
1 cal	4.184 J
2 cal	8.368 J
3 cal	12.552 J
5 cal	20.92 J
10 cal	41.84 J
20 cal	83.68 J
25 cal	104.6 J
50 cal	209.2 J
75 cal	313.8 J
100 cal	418.4 J
250 cal	1046 J
500 cal	2092 J
1000 cal	4184 J
5000 cal	20920 J

Calories (thermochemical) and joules are both energy units. One calorie (thermochemical) equals 4.184 joules; enter any value above for an instant result, or use the table for common conversions.

Sanity-check examples

1 cal = 4.184 J
10 cal = 41.84 J
2.5 cal = 10.46 J

Common pitfalls and look-alike units

The "Calorie" on food labels and in fitness is the kilocalorie (kcal): 1 kcal = 4184 J, and the small calorie (cal) is one thousandth of it. This page uses the thermochemical calorie (1 cal = 4.184 J); the International Steam Table calorie is about 4.1868 J, so values differ slightly. The "degree" (度) on a Chinese electricity bill is one kilowatt-hour, and 1 kWh = 3600 kJ.

Frequently asked questions

How many joules are in a calorie (thermochemical)?

1 calorie (thermochemical) (cal) equals 4.184 joule (J).

How do I convert calories (thermochemical) to joules?

Multiply the calorie (thermochemical) value by 4.184 to get joule — for example, 2 calories (thermochemical) = 8.368 joule.

How do I convert joules back to calories (thermochemical)?

1 joule is approximately 0.239006 calorie (thermochemical). Use the swap button or the reverse conversion page linked on this page.

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