Convert Kilocalories to Kilojoules
1 kilocalorie = 4.184 kilojoules. Type any value below to convert in either direction — the calculation happens in your browser.
Kilocalories to Kilojoules formula
Multiply the number of kilocalories by 4.184 to get kilojoules.
kilojoules = kilocalories × 4.184To go the other way: divide the number of kilojoules by 4.184, or multiply by 0.2390057.
kilocalories = kilojoules ÷ 4.184Kilocalories to Kilojoules conversion table
| Kilocalories | Kilojoules |
|---|---|
| 1 kcal | 4.184 kJ |
| 2 kcal | 8.368 kJ |
| 3 kcal | 12.552 kJ |
| 4 kcal | 16.736 kJ |
| 5 kcal | 20.92 kJ |
| 6 kcal | 25.104 kJ |
| 7 kcal | 29.288 kJ |
| 8 kcal | 33.472 kJ |
| 9 kcal | 37.656 kJ |
| 10 kcal | 41.84 kJ |
| 15 kcal | 62.76 kJ |
| 20 kcal | 83.68 kJ |
| 25 kcal | 104.6 kJ |
| 30 kcal | 125.52 kJ |
| 40 kcal | 167.36 kJ |
| 50 kcal | 209.2 kJ |
| 75 kcal | 313.8 kJ |
| 100 kcal | 418.4 kJ |
| 250 kcal | 1,046 kJ |
| 500 kcal | 2,092 kJ |
| 1,000 kcal | 4,184 kJ |
Kilojoules to Kilocalories conversion table
| Kilojoules | Kilocalories |
|---|---|
| 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 |
About the kilocalorie
A kilocalorie is 1,000 calories and is the "Calorie" printed on nutrition labels.
About the kilojoule
A kilojoule is 1,000 joules and is how food energy is labelled in most of the world.
Frequently asked questions
How many kilojoules are in a kilocalorie?
There are 4.184 kilojoules in one kilocalorie.
How many kilocalories are in a kilojoule?
There are 0.2390057 kilocalories in one kilojoule.
Is this conversion exact?
The ratio between the kilocalorie and the kilojoule is fixed by definition, so the conversion is exact — the figures shown here are rounded for readability only.
What is 10 kilocalories in kilojoules?
10 kilocalories equals 41.84 kilojoules.
Related energy conversions
- Joules to Kilojoules
- Calories to Kilojoules
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- Kilocalories to Calories
- Kilocalories to Watt Hours
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- Kilocalories to British Thermal Units
- Kilocalories to Electronvolts
- Kilocalories to Foot Pounds
- Watt Hours to Kilojoules
- Kilowatt Hours to Kilojoules
- British Thermal Units to Kilojoules
- Electronvolts to Kilojoules
- Foot Pounds to Kilojoules