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Kilojoules (kJ) and kilocalories (kcal) are units used to measure energy, especially when it comes to food and nutrition.
Kilojoules (kJ)
A kilojoule is a unit of energy in the metric system. It’s equal to 1,000 joules. Kilojoules are commonly used to measure the energy content of food and the amount of energy our bodies use. When we consume food, our bodies convert the nutrients into energy, often measured in kilojoules.
Kilocalories (kcal)
A kilocalorie, often referred to simply as a calorie, is another unit of energy commonly used in nutrition. It’s defined as the amount of energy needed to raise the temperature of 1 kilogram of water by 1 degree Celsius. Kilocalories are often used to indicate the energy content of food on nutrition labels. 1 kilocalorie is equal to 4.18 kilojoules.
How to convert from kJ to kcal
1 kcalth = 4.184 kJ
conversion formula
E(kcal) = E(kJ) / 4.184
Example – Convert 188 kilojoules to kilocalories.
Ans. E(kcal) = 188 kJ / 4.182 = 44.95 kcal
Kilojoule to Kilocalorie Conversion Table
| Kilojoule [kJ] | Kilocalorie (td) [kcal (td)] |
| 0.01 kJ | 0.0023900574 kcal (td) |
| 0.1 kJ | 0.0239005736 kcal (td) |
| 1 kJ | 0.2390057361 kcal (td) |
| 2 kJ | 0.4780114723 kcal (td) |
| 3 kJ | 0.7170172084 kcal (td) |
| 5 kJ | 1.1950286807 kcal (td) |
| 10 kJ | 2.3900573614 kcal (td) |
| 20 kJ | 4.7801147228 kcal (td) |
| 50 kJ | 11.9502868069 kcal (td) |
| 100 kJ | 23.9005736138 kcal (td) |
| 1000 kJ | 239.0057361377 kcal (td) |
FAQs on kJ to kcal Conversion
How do you convert kJ to kcal?
To convert kilojoules (kJ) to kilocalories (kcal), you can use the conversion factor: 1 kJ = 0.239 kcal. Simply multiply the amount in kilojoules by 0.239 to get the equivalent in kilocalories.
Is 1 kcal equal to 1 kJ?
No, 1 kilocalorie (kcal) is not equal to 1 kilojoule (kJ). 1 kcal is roughly equal to 4.184 kJ.
How much is 100 kcal in kJ?
100 kilocalories (kcal) is approximately equal to 418.4 kilojoules (kJ).
What is 1 kcal equal to in joule?
1 kilocalorie (kcal) is equal to approximately 4184 joules (J).
How much kJ is kcal?
1 kilocalorie (kcal) is roughly equivalent to 4.184 kilojoules (kJ).
Does 1 kcal equal 1000 calories?
Yes, 1 kilocalorie (kcal) is equivalent to 1000 calories. In nutrition, the term calorie often refers to kilocalories, so when you see Calories on food labels, it's actually referring to kilocalories.
How much is 1 kJ of energy?
1 kilojoule (kJ) of energy is relatively small. It's the energy needed to lift a small apple about 10 centimeters off the ground.
What is a kJ equal to?
A kilojoule (kJ) is a unit of energy. It's equal to the amount of work done when a force of 1 newton moves an object 1 meter in the direction of the force. In simpler terms, it's a measure of the energy used to do things, like moving, heating, or powering devices.
