Kilojoule to Calories Calculator
Kilojoule (KJ) to Calories (cal & kcal) Conversion
There are two types of calories. Here are the formulas to convert energy from kilojoules to both small and large calories.
Conversion Formulas
The relationships between kilojoules and calories can be expressed as:
cal = KJ × 239.005736 kcal = KJ × 0.239005736Where:
- cal = Small calories
- kcal = Large calories (food calories)
- KJ = Kilojoules
Example Calculation
If you have an energy output of 100 KJ, the calculations would be:
cal = 100 KJ × 239.005736 ≈ 23900.5736 cal kcal = 100 KJ × 0.239005736 ≈ 23.9005736 kcalWhat is a Kilojoule (KJ)?
A kilojoule (kJ) is a unit of energy in the International System of Units (SI). It is commonly used to measure energy in food and physical activities. One kilojoule is equal to 1,000 joules, which is the energy transferred when a force of one newton is applied over a distance of one meter.
What is a Small Calorie (cal)?
A small calorie (cal) is the energy needed to increase 1 gram of water by 1°C at a pressure of 1 atmosphere.
What is a Large Calorie (kcal)?
A large calorie (kcal) is the energy needed to increase 1 kg of water by 1°C at a pressure of 1 atmosphere. It is also known as a food calorie.
Kilojoules (kJ) to Calories (cal & kcal) Conversion Table
Formula: cal = kJ × 239.005736, kcal = kJ × 0.239005736
| Kilojoules [kJ] | Small Calories [cal] | Large Calories [kcal] |
|---|---|---|
| 1 kJ | 239.01 cal | 0.24 kcal |
| 5 kJ | 1195.06 cal | 1.19 kcal |
| 10 kJ | 2389.01 cal | 2.39 kcal |
| 20 kJ | 4778.02 cal | 4.78 kcal |
| 50 kJ | 11945.05 cal | 11.95 kcal |
| 100 kJ | 23890.10 cal | 23.89 kcal |
