⚡ Energy Power Converters

Convert between popular energy power units instantly using our free online converter.

Energy and power conversion is essential for engineers, scientists, and students working with electrical systems, mechanical processes, and energy analysis. This tool allows easy conversion between units such as joules (J), kilowatt-hours (kWh), watts (W), horsepower (hp), and more, ensuring precise measurement of both energy and the rate at which it is used. Accurate conversion is crucial for designing electrical systems, evaluating energy consumption, and optimizing performance. Students studying physics, electrical engineering, or energy systems can better understand the relationship between energy, power, and time. Our converter is fast, intuitive, and reliable: simply enter a value, select the unit, and get instant results. It eliminates manual calculations, reduces confusion between related units, and saves time. Whether analyzing energy usage, designing systems, or learning fundamental concepts, this energy and power converter is a practical, user-friendly tool for accurate and efficient unit conversions.

Select a conversion pair below to instantly switch between units. Each option is interactive and designed for quick access.

Convert Joule → Kilojoule instantly

Convert Joule → Calorie instantly

Convert Joule → Kilocalorie instantly

Convert Joule → BTU instantly

Convert Joule → Watt Hour instantly

Convert Joule → Kilowatt Hour instantly

Convert Joule → Electronvolt instantly

Convert Joule → Erg instantly

Convert Joule → Foot-pound instantly

Convert Joule → Therm instantly

Convert Joule → Quad instantly

Convert Joule → Horsepower Hour instantly

Convert Joule → Ton of TNT instantly

Convert Joule → Barrel of Oil instantly

Convert Kilojoule → Joule instantly

Convert Kilojoule → Calorie instantly

Convert Kilojoule → Kilocalorie instantly

Convert Kilojoule → BTU instantly

Convert Kilojoule → Watt Hour instantly

Convert Kilojoule → Kilowatt Hour instantly

Convert Kilojoule → Electronvolt instantly

Convert Kilojoule → Erg instantly

Convert Kilojoule → Foot-pound instantly

Convert Kilojoule → Therm instantly

Convert Kilojoule → Quad instantly

Convert Kilojoule → Horsepower Hour instantly

Convert Kilojoule → Ton of TNT instantly

Convert Kilojoule → Barrel of Oil instantly

Convert Calorie → Joule instantly

Convert Calorie → Kilojoule instantly

Convert Calorie → Kilocalorie instantly

Convert Calorie → BTU instantly

Convert Calorie → Watt Hour instantly

Convert Calorie → Kilowatt Hour instantly

Convert Calorie → Electronvolt instantly

Convert Calorie → Erg instantly

Convert Calorie → Foot-pound instantly

Convert Calorie → Therm instantly

Convert Calorie → Quad instantly

Convert Calorie → Horsepower Hour instantly

Convert Calorie → Ton of TNT instantly

Convert Calorie → Barrel of Oil instantly

Convert Kilocalorie → Joule instantly

Convert Kilocalorie → Kilojoule instantly

Convert Kilocalorie → Calorie instantly

Convert Kilocalorie → BTU instantly

Convert Kilocalorie → Watt Hour instantly

Convert Kilocalorie → Kilowatt Hour instantly

Convert Kilocalorie → Electronvolt instantly

Convert Kilocalorie → Erg instantly

Convert Kilocalorie → Foot-pound instantly

Convert Kilocalorie → Therm instantly

Convert Kilocalorie → Quad instantly

Convert Kilocalorie → Horsepower Hour instantly

Convert Kilocalorie → Ton of TNT instantly

Convert Kilocalorie → Barrel of Oil instantly

Convert BTU → Joule instantly

Convert BTU → Kilojoule instantly

Convert BTU → Calorie instantly

Convert BTU → Kilocalorie instantly

Convert BTU → Watt Hour instantly

Convert BTU → Kilowatt Hour instantly

Convert BTU → Electronvolt instantly

Convert BTU → Erg instantly

Convert BTU → Foot-pound instantly

Convert BTU → Therm instantly

Convert BTU → Quad instantly

Convert BTU → Horsepower Hour instantly

Convert BTU → Ton of TNT instantly

Convert BTU → Barrel of Oil instantly

Convert Watt Hour → Joule instantly

Convert Watt Hour → Kilojoule instantly

Convert Watt Hour → Calorie instantly

Convert Watt Hour → Kilocalorie instantly

Convert Watt Hour → BTU instantly

Convert Watt Hour → Kilowatt Hour instantly

Convert Watt Hour → Electronvolt instantly

Convert Watt Hour → Erg instantly

Convert Watt Hour → Foot-pound instantly

Convert Watt Hour → Therm instantly

Convert Watt Hour → Quad instantly

Convert Watt Hour → Horsepower Hour instantly

Convert Watt Hour → Ton of TNT instantly

Convert Watt Hour → Barrel of Oil instantly

Convert Kilowatt Hour → Joule instantly

Convert Kilowatt Hour → Kilojoule instantly

Convert Kilowatt Hour → Calorie instantly

Convert Kilowatt Hour → Kilocalorie instantly

Convert Kilowatt Hour → BTU instantly

Convert Kilowatt Hour → Watt Hour instantly

Convert Kilowatt Hour → Electronvolt instantly

Convert Kilowatt Hour → Erg instantly

Convert Kilowatt Hour → Foot-pound instantly

Convert Kilowatt Hour → Therm instantly

Convert Kilowatt Hour → Quad instantly

Convert Kilowatt Hour → Horsepower Hour instantly

Convert Kilowatt Hour → Ton of TNT instantly

Convert Kilowatt Hour → Barrel of Oil instantly

Convert Electronvolt → Joule instantly

Convert Electronvolt → Kilojoule instantly

Convert Electronvolt → Calorie instantly

Convert Electronvolt → Kilocalorie instantly

Convert Electronvolt → BTU instantly

Convert Electronvolt → Watt Hour instantly

Convert Electronvolt → Kilowatt Hour instantly

Convert Electronvolt → Erg instantly

Convert Electronvolt → Foot-pound instantly

Convert Electronvolt → Therm instantly

Convert Electronvolt → Quad instantly

Convert Electronvolt → Horsepower Hour instantly

Convert Electronvolt → Ton of TNT instantly

Convert Electronvolt → Barrel of Oil instantly

Convert Erg → Joule instantly

Convert Erg → Kilojoule instantly

Convert Erg → Calorie instantly

Convert Erg → Kilocalorie instantly

Convert Erg → BTU instantly

Convert Erg → Watt Hour instantly

Convert Erg → Kilowatt Hour instantly

Convert Erg → Electronvolt instantly

Convert Erg → Foot-pound instantly

Convert Erg → Therm instantly

Convert Erg → Quad instantly

Convert Erg → Horsepower Hour instantly

Convert Erg → Ton of TNT instantly

Convert Erg → Barrel of Oil instantly

Convert Foot-pound → Joule instantly

Convert Foot-pound → Kilojoule instantly

Convert Foot-pound → Calorie instantly

Convert Foot-pound → Kilocalorie instantly

Convert Foot-pound → BTU instantly

Convert Foot-pound → Watt Hour instantly

Convert Foot-pound → Kilowatt Hour instantly

Convert Foot-pound → Electronvolt instantly

Convert Foot-pound → Erg instantly

Convert Foot-pound → Therm instantly

Convert Foot-pound → Quad instantly

Convert Foot-pound → Horsepower Hour instantly

Convert Foot-pound → Ton of TNT instantly

Convert Foot-pound → Barrel of Oil instantly

Convert Therm → Joule instantly

Convert Therm → Kilojoule instantly

Convert Therm → Calorie instantly

Convert Therm → Kilocalorie instantly

Convert Therm → BTU instantly

Convert Therm → Watt Hour instantly

Convert Therm → Kilowatt Hour instantly

Convert Therm → Electronvolt instantly

Convert Therm → Erg instantly

Convert Therm → Foot-pound instantly

Convert Therm → Quad instantly

Convert Therm → Horsepower Hour instantly

Convert Therm → Ton of TNT instantly

Convert Therm → Barrel of Oil instantly

Convert Quad → Joule instantly

Convert Quad → Kilojoule instantly

Convert Quad → Calorie instantly

Convert Quad → Kilocalorie instantly

Convert Quad → BTU instantly

Convert Quad → Watt Hour instantly

Convert Quad → Kilowatt Hour instantly

Convert Quad → Electronvolt instantly

Convert Quad → Erg instantly

Convert Quad → Foot-pound instantly

Convert Quad → Therm instantly

Convert Quad → Horsepower Hour instantly

Convert Quad → Ton of TNT instantly

Convert Quad → Barrel of Oil instantly

Convert Horsepower Hour → Joule instantly

Convert Horsepower Hour → Kilojoule instantly

Convert Horsepower Hour → Calorie instantly

Convert Horsepower Hour → Kilocalorie instantly

Convert Horsepower Hour → BTU instantly

Convert Horsepower Hour → Watt Hour instantly

Convert Horsepower Hour → Kilowatt Hour instantly

Convert Horsepower Hour → Electronvolt instantly

Convert Horsepower Hour → Erg instantly

Convert Horsepower Hour → Foot-pound instantly

Convert Horsepower Hour → Therm instantly

Convert Horsepower Hour → Quad instantly

Convert Horsepower Hour → Ton of TNT instantly

Convert Horsepower Hour → Barrel of Oil instantly

Convert Ton of TNT → Joule instantly

Convert Ton of TNT → Kilojoule instantly

Convert Ton of TNT → Calorie instantly

Convert Ton of TNT → Kilocalorie instantly

Convert Ton of TNT → BTU instantly

Convert Ton of TNT → Watt Hour instantly

Convert Ton of TNT → Kilowatt Hour instantly

Convert Ton of TNT → Electronvolt instantly

Convert Ton of TNT → Erg instantly

Convert Ton of TNT → Foot-pound instantly

Convert Ton of TNT → Therm instantly

Convert Ton of TNT → Quad instantly

Convert Ton of TNT → Horsepower Hour instantly

Convert Ton of TNT → Barrel of Oil instantly

Convert Barrel of Oil → Joule instantly

Convert Barrel of Oil → Kilojoule instantly

Convert Barrel of Oil → Calorie instantly

Convert Barrel of Oil → Kilocalorie instantly

Convert Barrel of Oil → BTU instantly

Convert Barrel of Oil → Watt Hour instantly

Convert Barrel of Oil → Kilowatt Hour instantly

Convert Barrel of Oil → Electronvolt instantly

Convert Barrel of Oil → Erg instantly

Convert Barrel of Oil → Foot-pound instantly

Convert Barrel of Oil → Therm instantly

Convert Barrel of Oil → Quad instantly

Convert Barrel of Oil → Horsepower Hour instantly

Convert Barrel of Oil → Ton of TNT instantly