Kilocalories (thermochemical) to Joules – kilocalorie (thermochemical) to joule Converter

1 kcal = 4184 J

kilocalories (thermochemical) (kcal)

joules (J)4184

Formula

J = kcal × 4184

Kilocalories (thermochemical) to joules conversion table

kilocalories (thermochemical) (kcal)	joules (J)
0.25 kcal	1046 J
0.5 kcal	2092 J
1 kcal	4184 J
2 kcal	8368 J
5 kcal	20920 J
10 kcal	41840 J
20 kcal	83680 J
50 kcal	209200 J
100 kcal	418400 J
200 kcal	836800 J
500 kcal	2092000 J
1000 kcal	4184000 J
2500 kcal	10460000 J
5000 kcal	20920000 J
10000 kcal	41840000 J

Kilocalories (thermochemical) and joules are both energy units. One kilocalorie (thermochemical) equals 4184 joules; enter any value above for an instant result, or use the table for common conversions.

Sanity-check examples

1 kcal = 4184 J
10 kcal = 41840 J
2.5 kcal = 10460 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 kilocalorie (thermochemical)?

1 kilocalorie (thermochemical) (kcal) equals 4184 joule (J).

How do I convert kilocalories (thermochemical) to joules?

Multiply the kilocalorie (thermochemical) value by 4184 to get joule — for example, 2 kilocalories (thermochemical) = 8368 joule.

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

1 joule is approximately 0.000239006 kilocalorie (thermochemical). Use the swap button or the reverse conversion page linked on this page.

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