About the Energy Unit Converter
Energy comes in many units, and mixing them causes costly mistakes.
This converter translates any energy figure into the unit you need.
How this calculator works
We convert your value to joules internally, then to your chosen output unit using standard factors.
Why it matters
- Compare bills and specs accurately
- Convert instantly and precisely
- Handle metric and imperial units
- Great for study and work
Frequently asked questions
One kilowatt-hour equals 3.6 megajoules.
A therm is about 29.3 kWh, commonly used for natural gas billing.