Convert kilocalories (food Calorie) (kcal) to megajoules (MJ).
Edit either value. Decimals and scientific notation supported.
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1 kcal ≈ 0.004184 MJ
Precision changes displayed rounding, not calculation accuracy.
MJ = kcal × 0.004184MJ = kcal × 0.004184
Multiply the kcal reading by 0.004184.
1 kcal ≈ 0.004184 MJ
1 × 0.004184 ≈ 0.004184
100 kcal ≈ 0.4184 MJ
100 × 0.004184 ≈ 0.4184
A food Calorie is a kilocalorie: 1 kcal = 1,000 cal. This tool uses the thermochemical calorie of exactly 4.184 J.
Fixed reference · Kilocalorie (food Calorie) to Megajoule
Reference values use this page’s named pair and default context. Calculator precision and font settings do not change this table.
| Kilocalorie (food Calorie) (kcal) | Megajoule (MJ) |
|---|---|
| 0 | 0 |
| 0.1 | 0.0004184 |
| 0.5 | 0.002092 |
| 1 | 0.004184 |
| 2 | 0.008368 |
| 5 | 0.02092 |
| 10 | 0.04184 |
| 25 | 0.1046 |
| 50 | 0.2092 |
| 100 | 0.4184 |
| 1000 | 4.184 |
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