kilowatt-hours to megajoules — kWh to MJ Converter

Conversion Formula

Multiply the kilowatt-hours value by the conversion factor:
MJ = kWh × 3.6

How to Convert Step by Step

• Enter the number of kilowatt-hours you want to convert (e.g. 10 kWh).
• Multiply it by the factor 3.6.
• Round the result to 2–4 decimals for practical use — done, that is your value in megajoules.

Common kilowatt-hours to MJ Conversion Table

Real-World Examples

• Kilowatt-hours are used for power bills, AC, and EV range. Example: 10 kWh ≈ 36 MJ.
• Megajoules are used for gas, electricity, and fuel energy. Example: 20 MJ ≈ 5.5556 kWh.
• Kilowatt-hours are used for power bills, AC, and EV range. Another common case: 50 kWh = 180 MJ.

About kilowatt-hours & megajoules

• kilowatt-hours: The kilowatt-hour ("unit") bills electricity: 1 kWh = 1,000 W for one hour. A HK home uses ~300–600 units monthly.
• megajoules: A megajoule is 1,000 kJ, used for gas and electricity. A liter of petrol contains about 34 MJ.

FAQ

How many megajoules in 1 kWh?

1 kWh = 3.6 MJ. Use the converter above to compute any value, or multiply kWh by 3.6.

Is this kilowatt-hours-to-megajoules converter accurate?

Yes — conversions use the standard international factors and are rounded to 4 decimals.

When is kilowatt-hours to megajoules conversion used?

Kilowatt-hours are used for power bills, AC, and EV range. Megajoules are used for gas, electricity, and fuel energy. Whenever a value is given in kWh but you need MJ, this converter is the quick fix.

Related Conversions

joules→kilojouleskilojoules→jouleskilojoules→megajoulesmegajoules→kilojouleswatt-hours→kilowatt-hourskilowatt-hours→watt-hoursmegajoules→kilowatt-hourskilocalories→kilojouleskilojoules→kilocalories