Skip to content

Convert kilocalorie to joule

Here you can quickly calculate how many joule fit in one kilocalorie.

- scroll: formula · table · questions -

  • 1 kcal = 4184 J
  • 1 J = 0.000239 kcal

Kilocalorie to joule conversion table

kilocalorie joule
1 4184
2 8368
5 20920
10 41840
20 83680
50 209200
100 418400

Formula to convert kilocalorie to joule

To convert kilocalorie to joule, multiply by 4184.

1 kcal = 4184 J
Example: 1 kilocalorie = 4184 joule

Common mistakes

  • Food 'calories' are actually kilocalories: 1 kcal = 1,000 cal. A '500-calorie' meal therefore contains 500 kcal, half a million small calories. Labels write the same thing as 'kcal' or as 'Cal' with a capital C.

Quick kilocalorie to/from joule conversion quiz

Score: 0

50 kilocalorie equals 4.18e+4 joule.

Correct answer: 50 kilocalorie = 2.09e+5 joule.

20 kilocalorie equals 1.67e+4 joule.

Correct answer: 20 kilocalorie = 8.37e+4 joule.

10 kilocalorie equals 4.18e+3 joule.

Correct answer: 10 kilocalorie = 4.18e+4 joule.

5 kilocalorie equals 2.09e+4 joule.

Correct answer: 5 kilocalorie = 2.09e+4 joule.

More conversions in energy