NiftyRecipe Online energy conversion
kJ/cal 239.005736 kWh/MJ 3.6 kcal/MJ 0.004184 cal/kJ 0.004184 kJ/kWh 0.000278 cal/BTU 0.003966
cal / MJ

Calorie to Megajoule converter

1 cal = 0.000004 MJ

This is the Calorie to Megajoule converter. 1 cal = 4.184e-06 MJ.

Enter a value and click Calculate - opens the page with the new result

Common values

megajoule to calorie 2 calories in megajoule 3 calories in megajoule 4 calories in megajoule 5 calories in megajoule 6 calories in megajoule 8 calories in megajoule 10 calories in megajoule 12 calories in megajoule 15 calories in megajoule 20 calories in megajoule
Formula: calorie to megajoule

MJ = cal × 0.000004 (1 CAL = 0.000004 MJ)

Reference values: calorie → megajoule
cal MJ
1 cal 0.000004 MJ
100 cal 0.000418 MJ
200 cal 0.000837 MJ
500 cal 0.002092 MJ
1000 cal 0.004184 MJ
2000 cal 0.008368 MJ
Common conversions
1 cal → 0.000004 MJ 2 cal → 0.000008 MJ 3 cal → 0.000013 MJ 4 cal → 0.000017 MJ 5 cal → 0.000021 MJ 6 cal → 0.000025 MJ 8 cal → 0.000033 MJ 10 cal → 0.000042 MJ 12 cal → 0.00005 MJ 15 cal → 0.000063 MJ 20 cal → 0.000084 MJ 25 cal → 0.000105 MJ
FAQ for cal → MJ
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 = cal × 0.000004 (1 CAL = 0.000004 MJ)

Reverse factor?

1 megajoule ≈ 239005.736138 calorie.

How much is 1 calorie in megajoule?

0.000004 megajoule (1 calorie = 0.000004 megajoule).

How many kJ in 1 MJ?

Exactly 1000 kJ. Larger or mixed conversions still follow the fixed chain used by the calculator.

How the Calorie to Megajoule converter works

This hub describes the pair, not a single number.

NiftyRecipe shows the factor and selected amount pages.