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Kilojoules to Kilocalories

Type a value in Kilojoules or Kilocalories; the other field updates as you type.

Runs in your browser No sign-up

Swap units

500 kJ = 119.502868 kcal

Decimals

Common values

Kilojoules (kJ)Kilocalories (kcal)
100 kJ23.900574 kcal
200 kJ47.801147 kcal
300 kJ71.701721 kcal
400 kJ95.602294 kcal
500 kJ119.502868 kcal
750 kJ179.254302 kcal
1,000 kJ239.005736 kcal
2,000 kJ478.011472 kcal
3,000 kJ717.017208 kcal
4,000 kJ956.022945 kcal
5,000 kJ1,195.028681 kcal
7,500 kJ1,792.543021 kcal
8,400 kJ2,007.648184 kcal
10,000 kJ2,390.057361 kcal

How to use it

  1. Type the number of Kilojoules in the first field.
  2. Read the result in Kilocalories. You can also type in the Kilocalories field to convert the other way.
  3. Use the table of common values, or copy the result with one click.

How it works

Formula: kcal = kJ × 0.23900574

1 kJ = 0.239006 kcal, and 1 kcal = 4.184 kJ.

Results use the exact definitions of both units. The page shows up to 6 decimal places; copy the value for full precision.

Examples

100 kJ in kcal

100 kJ = 23.900574 kcal, using kcal = kJ × 0.23900574.

500 kJ in kcal

500 kJ = 119.502868 kcal, using kcal = kJ × 0.23900574.

1,000 kJ in kcal

1,000 kJ = 239.005736 kcal, using kcal = kJ × 0.23900574.

Frequently asked questions

How do I convert Kilojoules to Kilocalories?

Use the formula kcal = kJ × 0.23900574. For example, 100 kJ = 23.900574 kcal.

How do I convert Kilocalories back to Kilojoules?

Use the reverse formula kJ = kcal × 4.184. For example, 1 kcal = 4.184 kJ.

How accurate is this converter?

It uses the exact legal definitions of the units, so the only rounding is in the number of decimals shown. Copy the result to get the full value.

Privacy

The conversion runs entirely in your browser. Nothing you type is sent anywhere.