Kilocalorie to Megajoule converter
1 kcal = 0.004184 MJ
This is the Kilocalorie to Megajoule converter. The factor is fixed: 1 kcal = 0.004184 MJ. Open a common amount below, or type any value — only selected amounts are indexed.
Common values
Same amount, other units
MJ = kcal × 0.004184 (1 KCAL = 0.004184 MJ)
| kcal | MJ |
|---|---|
| 1 kcal | 0.004184 MJ |
| 100 kcal | 0.4184 MJ |
| 200 kcal | 0.8368 MJ |
| 500 kcal | 2.092 MJ |
| 1000 kcal | 4.184 MJ |
| 2000 kcal | 8.368 MJ |
Reverse factor?
1 megajoule ≈ 239.005736 kilocalorie.
How much is 1 kilocalorie in megajoule?
0.004184 megajoule (1 kilocalorie = 0.004184 megajoule).
How many kJ in 1 MJ?
Exactly 1000 kJ. Larger or mixed conversions still follow the fixed chain used by the calculator.
When is MJ more practical than kJ?
For larger totals-process energy, some statistical tables. Food labels usually stay in kJ or kcal.
Manual formula?
MJ = kcal × 0.004184 (1 KCAL = 0.004184 MJ)
This hub describes the pair, not a single number. Pages like 1, 10 or 100 Kilocalorie answer exact searches.
NiftyRecipe uses thermochemical energy factors (for example 1 kcal = 4184 J). Results do not change with the time of day.