Skip to content
Universal Converter

kilowatt hour

kWh exact

1 kWh = 3.6 MJ exactly.

Definition

Dimension
Energy
Symbols
kWh
System
SI
Base factor
×3600000
Exactness
exact

Follows from an SI or definitional identity — no material assumption.

Also known as

kilowatt-hourkilowatt hourskilowatt-hourskwhkw hkw-h

Sources

Common conversions

for 1 kWh
joule3,600,000J exact
kilojoule3,600kJ exact
megajoule3.6MJ exact
gigajoule0.0036GJ exact
megawatt hour0.001MWh exact
British thermal unit~3,412.14BTU standard definition
million British thermal units~0.00341214MMBTU standard definition
therm (US)~0.0341214therm standard definition
tonne of oil equivalent~0.0000859845toe standard definition
Open in converter →

Learn more

Joule vs watt-hour Both measure energy. 1 Wh = 3600 J exactly, so 1 kWh = 3.6 MJ — a pure, exact identity.Why electricity emissions depend on region and year A kWh of grid electricity has no single carbon factor — it depends on the country, the year and even the time of day.