Kilocalorie to Kilojoule Converter
Convert kilocalorie to kilojoule instantly.
Standard energy units
joule 418400
kilojoule 418.4
calorie 100000
watt-hour 116.222
kilowatt-hour 0.1162
BTU 396.565
Fun comparisons
apples eaten 🍎~ 1.21
hours of 100W bulb 💡~ 1.16
marathons run 🏃~ 0.14
full car tanks of fuel ⛽~ Less than 0.01
How to convert kilocalorie to kilojoule
Enter your energy value in kilocalorie and see the result in kilojoule instantly. Key reference points: 1 food Calorie equals 1 kcal (4.184 kJ), and 1 kilowatt-hour equals 3600 kJ (860 kcal).
Kilocalorie is the US/UK food energy unit; kilojoule is the food energy unit used in Australia and many EU countries. One kilocalorie equals 4.184 kilojoules.
Need the opposite direction? Convert kilojoule to kilocalorie just as easily, or explore all our energy conversions.
Common kilocalorie to kilojoule conversions
| Kilocalorie (kcal) | Kilojoule (kJ) |
|---|---|
| 1 | 4.184 |
| 5 | 20.92 |
| 10 | 41.84 |
| 25 | 104.6 |
| 50 | 209.2 |
| 100 | 418.4 |
| 500 | 2092 |
| 1000 | 4184 |
Frequently asked questions
1 kilocalorie equals 4.184 kilojoule.
Multiply by 4.184. For example, 5 kcal = 20.92 kJ.
500 kilocalories equals 2092 kilojoules.
1 kilojoule equals 0.239006 kilocalorie.
100 kilocalorie equals 418.4 kilojoule.