Kilojoules to Calories Converter
Food labels in many countries list energy in kilojoules, and in others in kilocalories, often called calories. This page converts one into the other.
- Free
- Works offline after your first visit
- Saves on this device
- No sign-up
- Updated
How it works
One kilocalorie is 4.184 kilojoules. To go from kilojoules to kilocalories, divide by 4.184.
The calculator works in joules inside, so the conversion is exact for whatever number you type.
Worked example
An amount of 500 kcal equals 500 kcal in kilocalories.
Questions
Is a kilocalorie the same as a food calorie?
Yes. Food calories are kilocalories. The smaller calorie used in physics is a different unit.
How do I convert the other way?
Multiply kilocalories by 4.184 to get kilojoules. Enter the kilojoule figure here and the result shows the calories.
Does this tell me whether food is healthy?
No. It only converts units. Judging food is a separate question for you and your doctor or dietitian.
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