The Energy Converter switches any amount of energy between scientific, nutritional and electrical units. Enter a value, choose your units, and read the exact result alongside a full conversion table.
Scientific, food and electrical energy
This converter covers joules and kilojoules, calories and kilocalories (food Calories), watt-hours and kilowatt-hours, electronvolts for physics, plus BTU and foot-pounds. It bridges nutrition labels, electricity bills and physics problems in one place.
All conversions use exact definitions (1 cal = 4.184 J, 1 kWh = 3.6 MJ), so results are reliable across every domain.
Common energy conversions
- Kilocalories to kilojoules for nutrition
- kWh to joules for electricity
- BTU to joules for heating and cooling
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