Convert Kilojoules to Calories
1 kilojoule = 239.005736 calories. Type any value below to convert in either direction — the calculation happens in your browser.
Kilojoules to Calories formula
Multiply the number of kilojoules by 239.005736 to get calories.
calories = kilojoules × 239.005736To go the other way: divide the number of calories by 239.005736, or multiply by 0.004184.
kilojoules = calories ÷ 239.005736Kilojoules to Calories conversion table
| Kilojoules | Calories |
|---|---|
| 1 kJ | 239.005736 cal |
| 2 kJ | 478.011472 cal |
| 3 kJ | 717.017208 cal |
| 4 kJ | 956.022945 cal |
| 5 kJ | 1,195.029 cal |
| 6 kJ | 1,434.034 cal |
| 7 kJ | 1,673.04 cal |
| 8 kJ | 1,912.046 cal |
| 9 kJ | 2,151.052 cal |
| 10 kJ | 2,390.057 cal |
| 15 kJ | 3,585.086 cal |
| 20 kJ | 4,780.115 cal |
| 25 kJ | 5,975.143 cal |
| 30 kJ | 7,170.172 cal |
| 40 kJ | 9,560.229 cal |
| 50 kJ | 11,950.29 cal |
| 75 kJ | 17,925.43 cal |
| 100 kJ | 23,900.57 cal |
| 250 kJ | 59,751.43 cal |
| 500 kJ | 119,502.9 cal |
| 1,000 kJ | 239,005.7 cal |
Calories to Kilojoules conversion table
| Calories | Kilojoules |
|---|---|
| 1 cal | 0.004184 kJ |
| 2 cal | 0.008368 kJ |
| 3 cal | 0.012552 kJ |
| 4 cal | 0.016736 kJ |
| 5 cal | 0.02092 kJ |
| 6 cal | 0.025104 kJ |
| 7 cal | 0.029288 kJ |
| 8 cal | 0.033472 kJ |
| 9 cal | 0.037656 kJ |
| 10 cal | 0.04184 kJ |
About the kilojoule
A kilojoule is 1,000 joules and is how food energy is labelled in most of the world.
About the calorie
A thermochemical calorie is exactly 4.184 joules — the energy to heat one gram of water by one degree Celsius.
Frequently asked questions
How many calories are in a kilojoule?
There are 239.005736 calories in one kilojoule.
How many kilojoules are in a calorie?
There are 0.004184 kilojoules in one calorie.
Is this conversion exact?
The ratio between the kilojoule and the calorie is fixed by definition, so the conversion is exact — the figures shown here are rounded for readability only.
What is 10 kilojoules in calories?
10 kilojoules equals 2,390.057 calories.
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