1 Calorie (kcal) = 4.184 kilojoules (kJ)
1 kJ = 0.239 Calories
Quick mental maths: multiply Calories by 4 and add a little (about 5%) to get kJ, or divide kJ by 4.2 to get Calories.
| Calories (kcal) | Kilojoules (kJ) |
|---|---|
| 500 | 2,092 |
| 1,000 | 4,184 |
| 1,500 | 6,276 |
| 1,800 | 7,531 |
| 2,000 | 8,368 |
| 2,500 | 10,460 |
| 3,000 | 12,552 |
Reading an Australian Nutrition Information Panel
Look at the Energy line, shown as kJ per serve and per 100 g (or 100 mL). Many labels also show Cal in brackets. Compare per 100 g when choosing between products, and use the per serve column to track what you actually eat.
Use your daily target
The calculator has a Calories/kilojoules toggle, so you can set a daily kJ target that matches the labels on your food.