PrismKitUnitsPower ConverterPower ConverterRuns in your browserLocalCopy linkMarkdownCompare watts, kilowatts, mechanical and metric horsepower, and BTU per hour.Energy ConverterMove between joules, calories, watt-hours, BTU, electronvolts and foot-pounds.Force ConverterConvert newtons, kilonewtons, dynes, kilogram-force, pound-force, kips and poundals.