Heat Converter

Free online heat converter. Convert between different units of heat instantly and accurately.

Heat Units

Joule (J) — the base unit
Kilojoule (kJ) — 1 kJ = 1,000 J
Megajoule (MJ) — 1 MJ = 1,000,000 J
Calorie (cal) — 1 cal = 4.184 J
Kilocalorie (kcal) — 1 kcal = 4,184 J
BTU (BTU) — 1 BTU = 1,055.06 J
Therm (thm) — 1 thm = 105,505,600 J
Watt Hour (Wh) — 1 Wh = 3,600 J
Kilowatt Hour (kWh) — 1 kWh = 3,600,000 J
Foot-pound (ft⋅lb) — 1 ft⋅lb = 1.35582 J
Erg (erg) — 1 erg = 1e-7 J
Electronvolt (eV) — 1 eV = 1.602177e-19 J

Common Heat Conversions

Kilowatt Hour to Megajoule

Heat Conversion Guides

Kilowatt-hours to Megajoules: Decoding Electrical Energy Conversions