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Megajoules to Calories Converter

Convert megajoules (MJ) to calories (thermochemical) (cal), with the formula, a conversion table and exact factors.

Change the values and press Calculate to work out your own figures.

Enter an amount of energy, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.

A number, fraction (3/8), mixed number (1 1/2), scientific notation (2.5e6) or a simple sum such as 2*3.
The unit you want the answer in. Swap exchanges the two units.
Result
239,005.736138 cal
joules (watt-seconds)
1,000,000 J
kilojoules
1,000 kJ
gigajoules
0.001 GJ
kilocalories (food Calories)
239.005736138 kcal
megacalories
0.239005736138 Mcal
watt-hours
277.777777778 Wh
kilowatt-hours
0.277777777778 kWh
megawatt-hours
0.000277777777778 MWh
British thermal units (IT)
947.817120313 Btu
million Btu
0.000947817120313 MMBtu
therms (100,000 Btu)
0.00947817120313 thm
quads (10¹⁵ Btu)
9.47817120313 × 10⁻¹³ quad
electronvolts
6.24150907446 × 10²⁴ eV
kiloelectronvolts
6.24150907446 × 10²¹ keV
megaelectronvolts
6.24150907446 × 10¹⁸ MeV

1 MJ = 239,005.736138 cal

Show the working
  1. 1 MJ = 239005.736138 cal
  2. 1 × 239005.736138 = 239005.736138 cal

How to convert megajoules to calories

1 MJ = 239,005.736138 cal, so multiply by 239,005.736138 to go from megajoules to calories (thermochemical). Going the other way, 1 cal = 4.184 × 10⁻⁶ MJ.

cal = MJ × 239,005.736138
MJ = cal × 4.184

Worked example:

1 MJ = 239005.736138 cal
5 × 239005.736138 = 1195028.68069 cal

Megajoules to calories table

MegajoulesCalories
1 MJ239,005.736138 cal
2 MJ478,011.472275 cal
3 MJ717,017.208413 cal
4 MJ956,022.944551 cal
5 MJ1,195,028.68069 cal
6 MJ1,434,034.41683 cal
7 MJ1,673,040.15296 cal
8 MJ1,912,045.8891 cal
9 MJ2,151,051.62524 cal
10 MJ2,390,057.36138 cal
15 MJ3,585,086.04207 cal
20 MJ4,780,114.72275 cal
25 MJ5,975,143.40344 cal
30 MJ7,170,172.08413 cal
40 MJ9,560,229.44551 cal
50 MJ11,950,286.8069 cal
75 MJ17,925,430.2103 cal
100 MJ23,900,573.6138 cal
250 MJ59,751,434.0344 cal
500 MJ119,502,868.069 cal
1000 MJ239,005,736.138 cal

About the units

Calories (cal)
Calories (thermochemical), a specialised unit. The thermochemical calorie, 4.184 J, used on US food labels as 1 Calorie = 1 kilocalorie. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.

Formula version 0.1.0Reviewed