Energy converter
Convert work, heat, and stored energy using joules as the base.
All energy conversions
Choose your starting unit. Each direction has its own calculator, formula, and examples.
Convert Joules
Convert Kilojoules
Convert Kilowatt-hours
Convert Thermochemical calories
Convert Thermochemical kilocalories
Convert International Table Btu
Convert Electronvolts
Using energy measurements
Calories use the thermochemical definition. Btu use the International Table definition. Food Calories are kilocalories, not single calories. Carry the same physical assumptions into subsequent physics calculations.