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Gigajoules to Megacalories Converter

Convert gigajoules (GJ) to megacalories (Mcal), 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
239.005736138 Mcal
joules (watt-seconds)
1,000,000,000 J
kilojoules
1,000,000 kJ
megajoules
1,000 MJ
calories (thermochemical)
239,005,736.138 cal
kilocalories (food Calories)
239,005.736138 kcal
watt-hours
277,777.777778 Wh
kilowatt-hours
277.777777778 kWh
megawatt-hours
0.277777777778 MWh
British thermal units (IT)
947,817.120313 Btu
million Btu
0.947817120313 MMBtu
therms (100,000 Btu)
9.47817120313 thm
quads (10¹⁵ Btu)
9.47817120313 × 10⁻¹⁰ quad
electronvolts
6.24150907446 × 10²⁷ eV
kiloelectronvolts
6.24150907446 × 10²⁴ keV
megaelectronvolts
6.24150907446 × 10²¹ MeV

1 GJ = 239.005736138 Mcal

Show the working
  1. 1 GJ = 239.005736138 Mcal
  2. 1 × 239.005736138 = 239.005736138 Mcal

How to convert gigajoules to megacalories

1 GJ = 239.005736138 Mcal, so multiply by 239.005736138 to go from gigajoules to megacalories. Going the other way, 1 Mcal = 0.004184 GJ.

Mcal = GJ × 239.005736138
GJ = Mcal × 0.004184

Worked example:

1 GJ = 239.005736138 Mcal
5 × 239.005736138 = 1195.02868069 Mcal

Gigajoules to megacalories table

GigajoulesMegacalories
1 GJ239.005736138 Mcal
2 GJ478.011472275 Mcal
3 GJ717.017208413 Mcal
4 GJ956.022944551 Mcal
5 GJ1,195.02868069 Mcal
6 GJ1,434.03441683 Mcal
7 GJ1,673.04015296 Mcal
8 GJ1,912.0458891 Mcal
9 GJ2,151.05162524 Mcal
10 GJ2,390.05736138 Mcal
15 GJ3,585.08604207 Mcal
20 GJ4,780.11472275 Mcal
25 GJ5,975.14340344 Mcal
30 GJ7,170.17208413 Mcal
40 GJ9,560.22944551 Mcal
50 GJ11,950.2868069 Mcal
75 GJ17,925.4302103 Mcal
100 GJ23,900.5736138 Mcal
250 GJ59,751.4340344 Mcal
500 GJ119,502.868069 Mcal
1000 GJ239,005.736138 Mcal

About the units

Megacalories (Mcal)
Megacalories, a specialised unit. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.

Formula version 0.1.0Reviewed