Energy and Power Converter
Convert joules, watt-hours and common energy units, or watts, kilowatts and horsepower without mixing energy and power.
Common conversions
| Starting value | Converted value |
|---|---|
| 1 kWh | 3.6 MJ |
| 2,000 kcal | 8.368 MJ |
| 1 kW | 1.34102209 hp |
Conventions and assumptions
- Energy is an amount; power is the rate at which energy is used. A conversion between them requires a duration and is not performed here.
- One kilowatt-hour is exactly 3.6 megajoules.
- Food Calories are kilocalories; the separate calorie option is the smaller thermochemical calorie.
Results use the displayed constants and round only for presentation. Conversion logic runs locally; RooBucks does not send your entered quantity to an external service.