Kilocalories to Kilojoules
Convert Kilocalories to Kilojoules with an exact factor. One kilocalorie equals 4.184 Kilojoules.
Result4.184
How to convert Kilocalories to Kilojoules
The converter above changes Kilocalories into Kilojoules instantly. As a reference point, one kilocalorie corresponds to 4.184 Kilojoules, and one kilojoule corresponds to 0.23900574 Kilocalories. Use the table below for common values.
Kilocalories × 4.184 = Kilojoules
For example, 5 Kilocalories = 20.92 Kilojoules.
About the units
- Kilocalories (kcal) — A kilocalorie (food "Calorie"), 4,184 joules.
- Kilojoules (kJ) — One thousand joules.
Kilocalories to Kilojoules conversion table
| Kilocalories | Kilojoules |
|---|---|
| 1 kcal | 4.184 kJ |
| 2 kcal | 8.368 kJ |
| 3 kcal | 12.552 kJ |
| 5 kcal | 20.92 kJ |
| 10 kcal | 41.84 kJ |
| 20 kcal | 83.68 kJ |
| 25 kcal | 104.6 kJ |
| 50 kcal | 209.2 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 | 0.23900574 kcal |
| 2 kJ | 0.47801147 kcal |
| 3 kJ | 0.71701721 kcal |
| 5 kJ | 1.19502868 kcal |
| 10 kJ | 2.39005736 kcal |
| 20 kJ | 4.78011472 kcal |
| 25 kJ | 5.9751434 kcal |
| 50 kJ | 11.95028681 kcal |
| 100 kJ | 23.90057361 kcal |
| 250 kJ | 59.75143403 kcal |
| 500 kJ | 119.50286807 kcal |
| 1,000 kJ | 239.00573614 kcal |
Frequently asked questions
How many Kilojoules is one kilocalorie?
One kilocalorie is 4.184 Kilojoules.
Are these energy conversions accurate?
Yes. They use the exact standard unit definitions, so results are accurate to the number of decimals shown.
What is the formula to convert Kilocalories to Kilojoules?
Multiply the number of Kilocalories by 4.184. To convert back, multiply Kilojoules by 0.23900574.
This tool is provided for general information only. Verify important figures independently. · Last reviewed: August 25, 2026