Convert Kilocalories to Joules
1 kilocalorie = 4,184 joules. Type any value below to convert in either direction — the calculation happens in your browser.
Kilocalories to Joules formula
Multiply the number of kilocalories by 4184 to get joules.
joules = kilocalories × 4184To go the other way: divide the number of joules by 4184, or multiply by 0.0002390057.
kilocalories = joules ÷ 4184Kilocalories to Joules conversion table
| Kilocalories | Joules |
|---|---|
| 1 kcal | 4,184 J |
| 2 kcal | 8,368 J |
| 3 kcal | 12,552 J |
| 4 kcal | 16,736 J |
| 5 kcal | 20,920 J |
| 6 kcal | 25,104 J |
| 7 kcal | 29,288 J |
| 8 kcal | 33,472 J |
| 9 kcal | 37,656 J |
| 10 kcal | 41,840 J |
| 15 kcal | 62,760 J |
| 20 kcal | 83,680 J |
| 25 kcal | 104,600 J |
| 30 kcal | 125,520 J |
| 40 kcal | 167,360 J |
| 50 kcal | 209,200 J |
| 75 kcal | 313,800 J |
| 100 kcal | 418,400 J |
| 250 kcal | 1,046,000 J |
| 500 kcal | 2,092,000 J |
| 1,000 kcal | 4,184,000 J |
Joules to Kilocalories conversion table
| Joules | Kilocalories |
|---|---|
| 1 J | 0.0002390057 kcal |
| 2 J | 0.0004780115 kcal |
| 3 J | 0.0007170172 kcal |
| 4 J | 0.0009560229 kcal |
| 5 J | 0.001195029 kcal |
| 6 J | 0.001434034 kcal |
| 7 J | 0.00167304 kcal |
| 8 J | 0.001912046 kcal |
| 9 J | 0.002151052 kcal |
| 10 J | 0.002390057 kcal |
About the kilocalorie
A kilocalorie is 1,000 calories and is the "Calorie" printed on nutrition labels.
About the joule
The joule is the SI unit of energy — the work done by one newton acting over one metre.
Frequently asked questions
How many joules are in a kilocalorie?
There are 4,184 joules in one kilocalorie.
How many kilocalories are in a joule?
There are 0.0002390057 kilocalories in one joule.
Is this conversion exact?
The ratio between the kilocalorie and the joule is fixed by definition, so the conversion is exact — the figures shown here are rounded for readability only.
What is 10 kilocalories in joules?
10 kilocalories equals 41,840 joules.
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