Energy Converter
Available Conversions
- Btu To Calorie
- Btu To Joule
- Btu To Kilocalorie
- Btu To Kilojoule
- Btu To Kilowatt Hour
- Btu To Watt Hour
- Calorie To Btu
- Calorie To Joule
- Calorie To Kilocalorie
- Calorie To Kilojoule
- Calorie To Kilowatt Hour
- Calorie To Watt Hour
- Joule To Btu
- Joule To Calorie
- Joule To Kilocalorie
- Joule To Kilojoule
- Joule To Kilowatt Hour
- Joule To Watt Hour
- Kilocalorie To Btu
- Kilocalorie To Calorie
- Kilocalorie To Joule
- Kilocalorie To Kilojoule
- Kilocalorie To Kilowatt Hour
- Kilocalorie To Watt Hour
- Kilojoule To Btu
- Kilojoule To Calorie
- Kilojoule To Joule
- Kilojoule To Kilocalorie
- Kilojoule To Kilowatt Hour
- Kilojoule To Watt Hour
- Kilowatt Hour To Btu
- Kilowatt Hour To Calorie
- Kilowatt Hour To Joule
- Kilowatt Hour To Kilocalorie
- Kilowatt Hour To Kilojoule
- Kilowatt Hour To Watt Hour
- Watt Hour To Btu
- Watt Hour To Calorie
- Watt Hour To Joule
- Watt Hour To Kilocalorie
- Watt Hour To Kilojoule
- Watt Hour To Kilowatt Hour
About Energy Units
Energy is a conserved quantity that can be transferred between systems or converted from one form to another. It exists in many forms including kinetic, potential, thermal, chemical, and electrical energy. The joule (J) is the SI unit of energy, though calories, BTUs, and watt-hours are commonly used in specific contexts.
Joule
The joule is the SI unit of energy, named after James Prescott Joule for his work on the mechanical equivalent of heat. It links energy to force and distance in a single coherent framework.
Kilojoule
Kilojoules provide a practical metric scale for everyday energy quantities, appearing on nutrition labels, vehicle specifications, and scientific measurements.
Calorie
The small calorie originated in early thermodynamics to describe the heat needed to raise one gram of water by one degree Celsius. Though supplanted by joules in science, it survives in nutrition and cooking discussions.