Kilojoule to Calories Calculator
Kilojoule (KJ) to Calories (cal & kcal) Conversion
👋 Welcome to the KJ to Calories Conversion tool! This calculator helps you 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 kcalUnderstanding KJ, cal, and kcal 🧠
What is a Kilojoule (KJ)?
A kilojoule (KJ) is a unit of energy equal to 1,000 joules. It is commonly used to measure energy in food and physical activity.
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.
Why Convert KJ to cal and kcal?
Converting kilojoules to calories is useful for understanding the energy content of food and dietary requirements, especially in nutrition.
Kilojoules (kJ) to Calories (cal & kcal) Conversion
Formula: cal = kJ × 239.005736, kcal = kJ × 0.239005736
Results:
Example Values
| 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 |
Kilojoule to Calorie Conversion FAQs
You can convert Kilojoules to Small and Large Calories using the following formulas:
Where:
- cal = Small Calories
- Cal = Large Calories (also known as food calories)
- kJ = Kilojoules
For example, if you have 10 kJ:
Understanding these conversions is crucial for:
- Comparing energy content in food and nutrition.
- Understanding energy expenditure in physical activities.
- Making informed dietary choices based on energy intake.
Kilojoules, Small Calories, and Large Calories are all units of energy. The relationships are defined as:
- 1 kJ ≈ 239.0057361 cal (Small Calories)
- 1 kJ ≈ 0.2390057361 Cal (Large Calories)
Here are some common examples:
- 1 kJ ≈ 239.01 cal
- 1 kJ ≈ 0.239 Cal
- 5 kJ ≈ 1195.06 cal
- 5 kJ ≈ 1.195 Cal
- 10 kJ ≈ 2390.11 cal
- 10 kJ ≈ 2.39 Cal
