Kilojoules to Kilocalories Converter
1 kilojoule = 0.2390057 kilocalories
Type a value in either box: the conversion between kilojoules (kJ) and kilocalories (kcal) updates instantly.
Kilocalories to Kilojoules Converter
Good to know
The EU reference intake for an average adult is 8,400 kJ (2,000 kcal) per day. Australian labels use an average adult daily intake of 8,700 kJ.
How to convert kilojoules to kilocalories
To convert kilojoules to kilocalories, multiply the number of kilojoules by 0.2390057. To go the other way, multiply kilocalories by 4.184.
kcal = kJ × 0.2390057
Worked examples
- 100 kJ = 23.90057 kcal
- 500 kJ = 119.5029 kcal
- 1,000 kJ = 239.0057 kcal
- 8,700 kJ = 2,079.35 kcal
Kilojoules to Kilocalories conversion table
| Kilojoules (kJ) | Kilocalories (kcal) |
|---|---|
| 1 kJ | 0.2390057 kcal |
| 2 kJ | 0.4780115 kcal |
| 3 kJ | 0.7170172 kcal |
| 4 kJ | 0.9560229 kcal |
| 5 kJ | 1.195029 kcal |
| 6 kJ | 1.434034 kcal |
| 7 kJ | 1.67304 kcal |
| 8 kJ | 1.912046 kcal |
| 9 kJ | 2.151052 kcal |
| 10 kJ | 2.390057 kcal |
| 15 kJ | 3.585086 kcal |
| 20 kJ | 4.780115 kcal |
| 25 kJ | 5.975143 kcal |
| 30 kJ | 7.170172 kcal |
| 40 kJ | 9.560229 kcal |
| 50 kJ | 11.95029 kcal |
| 75 kJ | 17.92543 kcal |
| 100 kJ | 23.90057 kcal |
| 250 kJ | 59.75143 kcal |
| 500 kJ | 119.5029 kcal |
| 1,000 kJ | 239.0057 kcal |
About the units
Kilojoules (kJ)
The kilojoule (kJ) is 1,000 joules, the SI unit of energy. Food labels in the EU, Australia and other countries show energy in both kJ and kcal.
Kilocalories (kcal)
The kilocalorie (kcal) is the energy needed to heat 1 kg of water by about 1 °C. On food labels it is usually called a Calorie, with a capital C.
Frequently asked questions
How do I convert kilojoules to kilocalories?
kcal = kJ × 0.2390057What is 500 kJ in kilocalories?
How many kilocalories are in a kilojoule?
How many kilojoules are in a kilocalorie?
Conversion factors use exact international definitions where they exist (for example 1 inch = 2.54 cm and 1 lb = 0.45359237 kg). Results are rounded for display only.