Energy Converter
Convert between different energy units: joule, calorie, kilowatt-hour, BTU.
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Energy Converter
Instant conversion between energy units
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About Energy Conversion
SI Units
Standard international energy units.
- • Joule (J) - Base SI unit
- • Kilojoule (kJ) - 1,000 J
- • Megajoule (MJ) - 1,000,000 J
- • Gigajoule (GJ) - 1,000,000,000 J
Electrical Energy
Units used for electrical energy.
- • Watt-hour (Wh) - 3,600 J
- • Kilowatt-hour (kWh) - 3.6 MJ
- • Megawatt-hour (MWh) - 3.6 GJ
Thermal Energy
Units for heat and thermal energy.
- • Calorie (cal) - 4.184 J
- • Kilocalorie (kcal) - 4,184 J
- • BTU - 1,055 J
- • Therm - 105.5 MJ
Other Units
Specialized energy measurements.
- • Erg - 10⁻⁷ J
- • Foot-pound - 1.356 J
- • Electron volt (eV) - 1.602×10⁻¹⁹ J