Printable chart
Energy Conversion Chart
Printable energy conversion chart for joules, calories, BTU, watt-hours and kilowatt-hours. Print this table or use the API and calculators for custom decimal precision.
Energy
Core conversion table
| Input | Equivalent | Unit pair |
|---|---|---|
| 100 joules | 23.9005736138 calories | j -> cal |
| 1 kilojoules | 0.947817120313 BTU | kj -> btu |
| 1 BTU | 1.05505585262 kilojoules | btu -> kj |
| 1 watt-hours | 3.6 kilojoules | wh -> kj |
| 1 kilowatt-hours | 3600000 joules | kwh -> j |
| 1 kilocalories | 4.184 kilojoules | kcal -> kj |
How to use this chart
Use the table for quick checks, classroom handouts and desk references. For values not shown here, open the converter or call the API with your own value, from unit and to unit.