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Energy unit converter with documented supported units
Convert one recorded energy amount between kWh, MWh, MJ and GJ. Select both units, enter a non-negative decimal and keep the result with your source record. The calculator provides exact arithmetic fractions alongside a readable rounded display.
This is an energy-only tool. It does not calculate energy from power and time, convert fuel quantities, calculate emissions or verify your records. Input-format instructions, scope and references are included in the calculator.
Related tools and guidance: energy data collection and units · emissions arithmetic calculator.
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