keencalculator
  1. Home
  2. Unit Converters
  3. Kilojoules to Kilocalories Converter

Kilojoules to Kilocalories Converter

Convert kilojoules to kilocalories by typing a value: the answer appears as you type. One kJ equals 0.239006 kcal, so to go from kilojoules to kilocalories you divide by 4.184. A table of common values is included below.

Quick examples
kJ
Your numbers stay in your browser. Nothing is uploaded.
Kilocalories59.7514 kcal
The same number of kilocalories in kilojoules
1,046 kJ

Kilojoules to kilocalories table

Kilojoules (kJ)Kilocalories (kcal)

Saved setups

Save a set of inputs you reuse — your usual rate, your loan, your room sizes — and load it back in one tap.

    Your recent calculations

    Results you calculate here are kept on this device so you can come back to them.

      Formula

      Kilocalories = kilojoules × 0.239006
      1 kJ = 0.239006 kcal
      1 kcal = 4.184 kJ

      How to use it

      1. Type the number of kilojoules.
      2. Read the result in kilocalories.
      3. Open the table for common values, or use the reverse converter to go from kilocalories to kilojoules.

      Worked examples

      10 kJ in kilocalories

      Kilocalories
      2.3901 kcal

      300 kJ in kilocalories

      Kilocalories
      71.7017 kcal

      Quick reference

      10 kJ = 2.3901 kcal. 50 kJ = 11.95 kcal. 100 kJ = 23.901 kcal. 150 kJ = 35.851 kcal. 200 kJ = 47.801 kcal. 250 kJ = 59.751 kcal. 300 kJ = 71.702 kcal. 500 kJ = 119.5 kcal.

      Good to know

      The “calorie” on food labels is a kilocalorie (kcal): 4.184 kilojoules. One kilowatt-hour, the unit on an electricity bill, is 3.6 megajoules.

      Questions people ask

      How many kilocalories are in 1 kJ?

      1 kJ is 0.239006 kcal.

      How do I convert kilojoules to kilocalories?

      Divide by 4.184. For example, 200 kJ × 0.239006 = 47.801 kcal.

      What is 2,000 kJ in kilocalories?

      2,000 kJ is 478.01 kcal.

      Related calculators