Convert Kilojoule to Kilocalorie
1 kilojoule = 0.2390057 kilocalorie (kcal). Type any value below to convert kilojoule to kilocalorie both ways — it runs entirely in your browser.
Kilojoule to Kilocalorie conversion formula
To convert kilojoule to kilocalorie, multiply by 0.2390057:
kilocalorie = kilojoule × 0.2390057
Going the other way, 1 kilocalorie = 4.184 kilojoule, so
kilojoule = kilocalorie × 4.184.
Kilojoule to Kilocalorie — worked examples
| Kilojoule | Kilocalorie |
|---|---|
| 1 kJ | 0.2390057 kcal |
| 2 kJ | 0.4780115 kcal |
| 3 kJ | 0.7170172 kcal |
| 5 kJ | 1.195029 kcal |
| 10 kJ | 2.390057 kcal |
| 25 kJ | 5.975143 kcal |
| 50 kJ | 11.95029 kcal |
| 100 kJ | 23.90057 kcal |
Kilojoule ↔ Kilocalorie reference table
| Kilojoule → Kilocalorie | Kilocalorie → Kilojoule |
|---|---|
| 1 kJ = 0.2390057 kcal | 1 kcal = 4.184 kJ |
| 2 kJ = 0.4780115 kcal | 2 kcal = 8.368 kJ |
| 5 kJ = 1.195029 kcal | 5 kcal = 20.92 kJ |
| 10 kJ = 2.390057 kcal | 10 kcal = 41.84 kJ |
| 20 kJ = 4.780115 kcal | 20 kcal = 83.68 kJ |
| 50 kJ = 11.95029 kcal | 50 kcal = 209.2 kJ |
| 100 kJ = 23.90057 kcal | 100 kcal = 418.4 kJ |
| 250 kJ = 59.75143 kcal | 250 kcal = 1,046 kJ |
| 500 kJ = 119.5029 kcal | 500 kcal = 2,092 kJ |
| 1000 kJ = 239.0057 kcal | 1000 kcal = 4,184 kJ |
About kilojoule and kilocalorie
Kilojoule: A kilojoule is 1,000 joules — the energy unit on food labels (shown next to kilocalories) and for everyday amounts of energy.
Kilocalorie: A kilocalorie (the food "Calorie", Cal) is 1,000 small calories — exactly 4,184 J. It is the energy figure printed on nutrition labels.
Frequently asked questions
- How many kilocalorie are in 1 kilojoule?
- 1 kilojoule = 0.2390057 kilocalorie (kcal).
- How do I convert kilojoule to kilocalorie?
- Multiply the number of kilojoule by 0.2390057. For example, 10 kilojoule = 10 × 0.2390057 = 2.390057 kilocalorie.
- How many kilojoule are in 1 kilocalorie?
- 1 kilocalorie = 4.184 kilojoule.
- Which is bigger, kilojoule or kilocalorie?
- 1 kilocalorie equals 4.184 kilojoule, so a kilocalorie is the larger unit.