kcal to kJ converter
1 kcal = 4.184 kJ (thermochemical); 1 kJ = 0.239006 kcal. To convert kcal to kJ, multiply by 4.184.
Conversion formula
kJ = kcal × 4.184
Conversion table
| 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 |
| 50 kcal | 209.2 kJ |
| 100 kcal | 418.4 kJ |
| 1000 kcal | 4184 kJ |
Reverse conversion table
| 1 kJ | 0.239006 kcal |
|---|---|
| 2 kJ | 0.478012 kcal |
| 3 kJ | 0.717018 kcal |
| 4 kJ | 0.956024 kcal |
| 5 kJ | 1.19503 kcal |
| 6 kJ | 1.43404 kcal |
| 7 kJ | 1.67304 kcal |
| 8 kJ | 1.91205 kcal |
| 9 kJ | 2.15105 kcal |
| 10 kJ | 2.39006 kcal |
| 15 kJ | 3.58509 kcal |
| 20 kJ | 4.78012 kcal |
| 25 kJ | 5.97515 kcal |
| 50 kJ | 11.9503 kcal |
| 100 kJ | 23.9006 kcal |
| 1000 kJ | 239.006 kcal |
Key facts
| 1 kilocalorie | 4.184 kJ (thermochemical) |
|---|---|
| 1 kJ | 0.239006 kcal |
| Formula | kJ = kcal × 4.184 |
| 100 kcal | 418.4 kJ |
Frequently asked questions
How many kJ is 1 kcal?
1 kilocalorie equals 4.184 kJ (thermochemical). Multiply kcal by 4.184.
Is a food Calorie a kcal?
Yes. A nutritional Calorie (with a capital C) equals one kilocalorie, or 4.184 kJ.
Reverse conversion
Printable A4 conversion cheat sheet — see the Downloads page