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Energy Converter

Convert between energy units including joules, calories, kilowatt-hours, and BTU, using internationally standardized definitions.

Result

3,600

1 Kilowatt-hours (kWh) = 3,600 Kilojoules (kJ)

About these conversions

  • All conversions pass through the joule as the base unit.
  • The food 'Calorie' (capital C) is a kilocalorie: 1 kcal = 4,184 J.
  • 1 kWh = 3.6 MJ exactly (1 watt = 1 joule/second × 3,600,000 seconds-thousands).
  • BTU uses the International Table definition (1,055.05585262 J).