Utilities

Energy Converter

Convert between J, kJ, Wh, kWh, cal, kcal, and BTU instantly. Everything runs locally.

Joules (J)

Base unit

Kilojoules (kJ)

Watt-hours (Wh)

Kilowatt-hours (kWh)

Calories (cal, thermochemical)

1 cal = 4.184 J

Kilocalories (kcal)

food “Calories”

BTU (International Table)

1 BTU = 1055.05585262 J

Uses thermochemical cal (4.184 J) and BTU (IT) standard; runs fully client-side.