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Megajoules to Kilowatt-hours Converter

Convert megajoules (MJ) to kilowatt-hours (kWh), 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
0.277777777778 kWh
joules (watt-seconds)
1,000,000 J
kilojoules
1,000 kJ
gigajoules
0.001 GJ
calories (thermochemical)
239,005.736138 cal
kilocalories (food Calories)
239.005736138 kcal
megacalories
0.239005736138 Mcal
watt-hours
277.777777778 Wh
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 = 0.277777777778 kWh

Show the working
  1. 1 MJ = 0.277777777778 kWh
  2. 1 × 0.277777777778 = 0.277777777778 kWh

How to convert megajoules to kilowatt-hours

1 MJ = 0.277777777778 kWh, so multiply by 0.277777777778 to go from megajoules to kilowatt-hours. Going the other way, 1 kWh = 3.6 MJ.

kWh = MJ × 0.277777777778
MJ = kWh × 3.6

Worked example:

1 MJ = 0.277777777778 kWh
5 × 0.277777777778 = 1.38888888889 kWh

Megajoules to kilowatt-hours table

MegajoulesKilowatt-hours
1 MJ0.277777777778 kWh
2 MJ0.555555555556 kWh
3 MJ0.833333333333 kWh
4 MJ1.11111111111 kWh
5 MJ1.38888888889 kWh
6 MJ1.66666666667 kWh
7 MJ1.94444444444 kWh
8 MJ2.22222222222 kWh
9 MJ2.5 kWh
10 MJ2.77777777778 kWh
15 MJ4.16666666667 kWh
20 MJ5.55555555556 kWh
25 MJ6.94444444444 kWh
30 MJ8.33333333333 kWh
40 MJ11.1111111111 kWh
50 MJ13.8888888889 kWh
75 MJ20.8333333333 kWh
100 MJ27.7777777778 kWh
250 MJ69.4444444444 kWh
500 MJ138.888888889 kWh
1000 MJ277.777777778 kWh

About the units

Kilowatt-hours (kWh)
Kilowatt-hours, a metric unit. Definition: BIPM SI Brochure, 9th edition (SI units, prefixes and units accepted for use with the SI).

Formula version 0.1.0Reviewed