Edit either value. Decimals and scientific notation supported.
1
MJ
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JouleJ
KilojoulekJ
MegajouleMJ
Watt-hourWh
Kilowatt-hourkWh
Thermochemical caloriecal
Kilocalorie (food Calorie)kcal
BTU (international table)BTU (IT)
ElectronvolteV
No units found. Try a name or symbol.
0.2777777778
kWh
esc
JouleJ
KilojoulekJ
MegajouleMJ
Watt-hourWh
Kilowatt-hourkWh
Thermochemical caloriecal
Kilocalorie (food Calorie)kcal
BTU (international table)BTU (IT)
ElectronvolteV
No units found. Try a name or symbol.
CONVERSION
1 MJ ≈ 0.2777777778 kWh
6 significant figures
10 significant figures
15 significant figures
Precision changes displayed rounding, not calculation accuracy.
FORMULAkWh = MJ ÷ 3.6
FORMULA & EXAMPLES
How to convert Megajoules to kilowatt-hours
kWh = MJ ÷ 3.6
Divide the MJ reading by 3.6.
Worked examples
1 MJ ≈ 0.2777777778 kWh
1 ÷ 3.6 ≈ 0.2777777778
3.6 MJ ≈ 1 kWh
3.6 ÷ 3.6 ≈ 1
Frequently asked questions
Is a watt-hour the same quantity as a watt?
No. A watt-hour measures energy; a watt measures power. One watt-hour is the energy transferred at one watt for one hour, equal to 3,600 joules.
Megajoules to kilowatt-hours table
Fixed reference · Megajoule to Kilowatt-hour
Reference values use this page’s named pair and default context. Calculator precision and font settings do not change this table.
Megajoule (MJ)
Kilowatt-hour (kWh)
0
0
0.1
0.02777777778
0.5
0.1388888889
1
0.2777777778
2
0.5555555556
5
1.388888889
10
2.777777778
25
6.944444444
50
13.88888889
100
27.77777778
1000
277.7777778
Table results use 10 significant figures; decimal formula coefficients use up to 15. Calculations use the unit definitions before rounding. Extra digits do not improve measurement accuracy.