MJ to kWh Converter - Megajoule to Kilowatt-hour
Megajoule (MJ) to Kilowatt-hour (kWh)
Direct answer
1 MJ = 0.277777777778 kWh
kWh = MJ × 0.277777777778
Converter
Conversion formula
kWh = MJ × 0.277777777778
MJ = kWh × 3.6
Example: 10 MJ = 10 × 0.277777777778 = 2.77777777778 kWh.
Common conversion table
| MJ | kWh |
|---|---|
| 1 MJ | 0.277777777778 kWh |
| 2 MJ | 0.555555555556 kWh |
| 5 MJ | 1.38888888889 kWh |
| 10 MJ | 2.77777777778 kWh |
| 20 MJ | 5.55555555556 kWh |
| 50 MJ | 13.8888888889 kWh |
| 100 MJ | 27.7777777778 kWh |
| 1,000 MJ | 277.777777778 kWh |
Conversion derivation
Express both MJ and kWh in the same base unit J (joule), then cancel the shared base unit.
- 1
Rewrite MJ in the base unit
- 2
Rewrite kWh in the base unit
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Forward conversion
- 4
Reverse conversion
AI explanation for this conversion
This pre-generated explanation is schema-checked. Numeric results still come from the page formula and calculator.
MJ to kWh Conversion
The conversion factor between megajoules and kilowatt-hours is based on expressing both energy units in the same base unit, the joule, and then taking their ratio.
Definition
A megajoule (MJ) is a unit of energy equal to one million joules. A kilowatt-hour (kWh) is a unit of energy equal to the energy consumed by a one-kilowatt device operating for one hour, which is equivalent to 3,600,000 joules.
Principle
The factor is derived by dividing the base-unit equivalent of the source unit (1 MJ = 1,000,000 J) by the base-unit equivalent of the target unit (1 kWh = 3,600,000 J). This cancellation of joules leaves the dimensionless factor.
Assumptions
- The conversion is defined exactly by the relationship between joules, megajoules, and kilowatt-hours.
- 1 MJ is exactly 1,000,000 J.
- 1 kWh is exactly 3,600,000 J.
Cautions
- This conversion is for energy units only; it does not account for power or time independently.
- When using the result, consider rounding to the appropriate number of significant figures for your application.
FAQ
How many kWh are in 1 MJ?
1 MJ = 0.277777777778 kWh.
How many kWh are in 10 MJ?
10 MJ = 2.77777777778 kWh.
How many kWh are in 100 MJ?
100 MJ = 27.7777777778 kWh.
What is the formula to convert MJ to kWh?
Use kWh = MJ × 0.277777777778.
How many MJ are in 1 kWh?
1 kWh = 3.6 MJ.
What should I check when converting MJ to kWh?
Use the conversion factor and round the result to the precision required by your calculation.