Convert calories to kilojoules, and vice versa, with this handy tool.
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Enter a value in either box above and we'll convert it.
Formula: 1 Cal = 4.184 kJ, rounded to the nearest whole number.
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This calculator converts between Calories and kilojoules, rounded to the nearest whole number. It uses the formula 1 Calorie = 4.184 kilojoules.
Tracking calories is one way to help keep your weight within a healthy range, but the best approach is to enjoy a nutritious, well-balanced diet.
This calculator has been reviewed by Bupa health professionals and is based on reputable sources of medical research. It is not a diagnostic tool and should not be relied on as a substitute for professional health advice.
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