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Common Converters

Energy Converter

Value

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... Gigawatt-hour = ... Megajoule

Result

... Gigawatt-hour

... Megajoule

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Use this page to convert gigawatt-hour values into megajoule, with background details, formulas, a worked example, and a quick conversion table.

1 GWh = 3,600,000 MJ

1 MJ = 0.000000277777777777778 GWh

Example: 120 GWh = 432,000,000 MJ

Gigawatt-hour (GWh) is represented in this converter as 3600000000000 joules.

History: Gigawatt-hour comes from electrical metering, mechanical power, fuel equivalence, or heating-energy practice.

Current use: Gigawatt-hour appears in electricity, heating, fuel analysis, batteries, and industrial energy reporting.

Also written as GWh.

A megajoule equals one million joules.

History: It follows the SI mega prefix for scaling joules by powers of ten.

Current use: Megajoules are used in fuel values, engineering, and energy reporting.

Also written as MJ, megajoules.