Gigajoule (GJ) Converter

Joules (J)
1,000,000,000
Kilowatt Hours (kWh)
277.778
BTU
947,817.120
Calories (cal)
238,845.897
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Understanding Gigajoules

What is a Gigajoule?

A gigajoule (GJ) is a unit of energy equal to one billion (109) joules. It's commonly used in large-scale energy measurements, particularly in industrial and commercial applications. One gigajoule is approximately equivalent to:

  • 277.78 kilowatt-hours of electricity
  • 26.1 cubic meters of natural gas
  • The energy content of 27 liters of gasoline

Common Uses

Gigajoules are frequently used in:

  • Industrial energy consumption measurement
  • Natural gas billing
  • Power plant energy output calculations
  • Large-scale energy efficiency assessments