Energy Unit Converter

Convert Between Different Energy Units Instantly

1 Joule = 0.001 Kilojoules
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Understanding Energy Units

Common Energy Units

The joule (J) is the SI unit of energy. Other common units include calories (cal) for food energy, kilowatt-hours (kWh) for electrical energy, and British Thermal Units (BTU) for heating and cooling.

Practical Applications

Understanding energy units is crucial for various fields:

  • Food nutrition labels (calories)
  • Electricity bills (kilowatt-hours)
  • Scientific calculations (joules)
  • HVAC systems (BTU)