Energy Converter
Convert energy between joules, kilowatt-hours, BTU, calories, kilocalories and therms.
Formula
value in J = value × factor(from); result = value in J ÷ factor(to)Rules of thumb
- 1 kWh = 3.6 MJ ≈ 3,412 BTU. 1 therm = 100,000 BTU ≈ 29.3 kWh.