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Kilojoules to Kilocalories Converter (kJ to kcal)

1 kJ = 0.2390057361 kcal. Type any value to convert kilojoules to kilocalories.

1 kJ = 0.2390057361 kcal

Formula: kcal = kJ × 0.2390057361

Common values
Decimals
In every unit 12 units
Joule (J) 1,000 J
Kilojoule (kJ) 1 kJ
Megajoule (MJ) 0.001 MJ
Calorie (cal) 239.0057361 cal
Kilocalorie (kcal) 0.2390057361 kcal
Watt-hour (Wh) 0.2777777778 Wh
Kilowatt-hour (kWh) 0.0002777777778 kWh
Electronvolt (eV) 6.241509074 × 10²¹ eV
British thermal unit (BTU) 0.9478171203 BTU
Therm (thm) 0.00000948043428 thm
Foot-pound (ft·lbf) 737.5621493 ft·lbf
Erg (erg) 10,000,000,000 erg

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Kilojoules to kilocalories table

Formula: kcal = kJ × 0.2390057361

Kilojoule (kJ)Kilocalorie (kcal)
0.1 kJ0.02390057361 kcal
0.25 kJ0.05975143403 kcal
0.5 kJ0.1195028681 kcal
1 kJ0.2390057361 kcal
2 kJ0.4780114723 kcal
3 kJ0.7170172084 kcal
4 kJ0.9560229446 kcal
5 kJ1.195028681 kcal
6 kJ1.434034417 kcal
7 kJ1.673040153 kcal
8 kJ1.912045889 kcal
9 kJ2.151051625 kcal
10 kJ2.390057361 kcal
12 kJ2.868068834 kcal
15 kJ3.585086042 kcal
20 kJ4.780114723 kcal
25 kJ5.975143403 kcal
30 kJ7.170172084 kcal
40 kJ9.560229446 kcal
50 kJ11.95028681 kcal
60 kJ14.34034417 kcal
75 kJ17.92543021 kcal
100 kJ23.90057361 kcal
150 kJ35.85086042 kcal
200 kJ47.80114723 kcal
250 kJ59.75143403 kcal
500 kJ119.5028681 kcal
1,000 kJ239.0057361 kcal

How to use: Kilojoules to Kilocalories

  1. 1 Type the value in kilojoules.
  2. 2 The result in kilocalories appears at once – or type in the kilocalories field to convert back.
  3. 3 Pick a common value, round to fewer decimals or swap the units with one click.
  4. 4 Copy the result, or open “In every unit” to see the value in all units of energy.

About this tool

Kilojoule (kJ) is a unit of energy (SI); 1 kJ = 1,000 J. Kilocalorie (kcal) is a unit of energy; 1 kcal = 4,184 J.

To convert kilojoules to kilocalories, multiply the value by 0.2390057361 (kcal = kJ × 0.2390057361). Example: 100 kJ = 23.90057361 kcal.

Calculated in your browser – nothing you type is sent anywhere.

Frequently asked questions

How do I convert kilojoules to kilocalories?

To convert kilojoules to kilocalories, multiply the value by 0.2390057361: kcal = kJ × 0.2390057361. For example 100 kJ = 23.90057361 kcal.

What is 1 kJ in kilocalories?

1 kJ = 0.2390057361 kcal. The other way round, 1 kcal = 4.184 kJ.

How exact is the result?

The converter uses the official definitions of both units and shows up to 10 significant digits; choose 0–6 decimals to round. Both units are defined exactly in terms of each other, so the factor itself is exact.

Can I convert other units of energy here?

Yes – choose any of the 12 units of energy in the From and To lists, or switch to another measurement at the top.