kWh Converter

Convert kilowatt-hours (kWh) to megajoules (MJ) instantly. Includes the exact conversion factor, formula and a quick reference table.

Enter values

Result

Megajoules

3.6 MJ

Joules: 3,600,000 J
Kilojoules: 3,600 kJ
Calories: 860,420.65 cal
Kilocalories (food Calories): 860.4207 kcal
Watt-hours: 1,000 Wh
British thermal units: 3,412.14 BTU

Step-by-stepShow

1 kWh × 3.6 = 3.6 MJ

Kilowatt-hours to Megajoules conversion table

Kilowatt-hours (kWh)	Megajoules (MJ)
0.1	0.36
0.5	1.8
1	3.6
2	7.2
5	18
10	36
20	72
50	180
100	360
500	1,800
1,000	3,600

About the kWh Converter

Convert kilowatt-hours (kWh) to megajoules (MJ) instantly. Includes the exact conversion factor, formula and a quick reference table.

Also known as: kWh to MJ, Kilowatt-hours to Megajoules, convert Kilowatt-hours to Megajoules, kwh to mj, kilowatt hours to joules, kwh to mj.

How to use this calculator

Enter value in kilowatt-hours.
The result updates instantly as you type — press Calculate (or Enter) at any time.
Open “Step-by-step” to see how the answer was worked out.
Use Copy result or Share to save the answer or send a link with your inputs.

Formula

MJ = kWh × 3.6

Worked example

Using the values pre-filled in the calculator above:

Value in kilowatt-hours = 1 kWh

the calculator returns:

Megajoules: 3.6 MJ
Joules: 3,600,000 J
Kilojoules: 3,600 kJ
Calories: 860,420.65 cal

Working

1 kWh × 3.6 = 3.6 MJ

Frequently asked questions

How many megajoules are in one kilowatt-hour?

1 kWh equals 3.6 MJ.