Energy Converter
Convert energy between joules, kilojoules, calories, watt-hours and BTU.
Results are provided for general informational use. Verify important financial, health or legal figures before relying on them.
About this Energy Converter
The Energy Converter translates energy quantities between common scientific, electrical and food-energy units. It can help compare specifications and calculations that use different measurement systems.
For related tasks, try Power Converter, Pressure Converter or Force Converter.
How the calculation works
Conversions use joules as the internal base unit. Food kilocalories are represented as kcal, while small calories use cal.
How to use it
- Enter an energy value.
- Select the original and target units.
- Convert to see the equivalent amount.
Practical example
1 kilowatt-hour equals 3,600,000 joules.
Frequently asked questions
Is kcal the same as a food Calorie?
In nutrition contexts, one dietary Calorie commonly means one kilocalorie.
Can it convert kWh to joules?
Yes.
Does it calculate electricity cost?
No. It converts energy units only.
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