Energy and Power Conversion & Converter

Energy and Power unit conversion. Convert Energy and Power to and from Joules, Kilowatt-hours, Kilojoules, Megaelectron-volts, Electron-volts, Ergs, Megawatt-hours, Kilotons (metric,explosive energy), Foot-poundals, Foot-pounds, Newton-meters, Therms (EC), Therms (US), Calories (15℃,CIPM,1950), Calories (15℃,NBS 1939), Calories (20℃), Calories (I.T.), Calories (Kilogram,I.T.), Calories (Kilogram,mean), Calories (Kilogram,thermoc.), Calories (mean), Calories (nutritional), Calories (thermoc.), Btu (15℃), Btu (15.6℃), Btu (15.8℃, Canada), Btu (15.8℃, ISO), Btu (3.9℃), Btu (I.T.), Btu (I.T., pre-1956), Btu (mean), Btu (thermoc.), Therms (UK).