Kilocalorie to Joule (kcal to J)

Convert kcal to JEnergy converter

One kilocalorie equals 4184 J, so to convert kilocalories to joules you multiply the value by 4184. A kilocalorie is larger than a joule — going the other way, 1 J = 0.0002390057 kcal. For example, 10 kcal = 41840 J and 50 kcal = 209200 J.

4184Click to copy

1 kcal = 4184 J

Kilocalorie to Joule formula

1 Kilocalorie = 4184 J

Worked examples

  • 25 kcal = 104600 J
  • 100 kcal = 418400 J

Kilocalorie to Joule conversion table

Kilocalorie (kcal)Joule (J)
14184
28368
312552
520920
833472
1041840
1250208
1562760
2083680
25104600
50209200
100418400
2501046000
5002092000
10004184000

Frequently asked questions

How many joules are in one kilocalorie?

One kilocalorie equals 4184 joules (J).

How many kilocalories are in one joule?

One joule equals 0.0002390057 kilocalories (kcal).

How do you convert kilocalories to joules?

1 Kilocalorie = 4184 J. Use the calculator above for any value.

What is 5 kcal in J?

5 kcal = 20920 J.

What is 100 kcal in J?

100 kcal = 418400 J.

What is 10 kcal in J?

10 kcal = 41840 J.

What is 20 kcal in J?

20 kcal = 83680 J.

Is a kilocalorie bigger than a joule?

Yes. A kilocalorie is larger — one kilocalorie equals 4184 joules (J).

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