Calories to Kilojoules
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cal
kj
Quick reference
| Calories (cal) | Kilojoules (kj) |
|---|
Formula
Kilojoules = calories × 0.004184
Multiply the calories value by 0.004184 to get kilojoules. To reverse — divide kilojoules by 0.004184 to get calories.
About this conversion
The calorie (cal) is the energy needed to raise 1 gram of water by 1°C, equal to approximately 4.184 joules. Learn more →
The kilojoule (kJ) equals 1,000 joules, commonly used in food energy and thermodynamics. Learn more →
Source: NIST International Reference