kWh/kg\text{kWh/kg}

kilowatt-hour per kilogram

Specific energySpecific latent heatexact by definition

One kilowatt-hour per kilogram, equal to 3.6 MJ/kg. It appears where the quantities are large enough that watt-hours would be unwieldy, and in some fuel-cell and hydrogen literature.

1 kWh/kg\text{kWh/kg} (Specific energy)3,600,000 J/kg\text{J/kg}
1 kW⋅h/kg\text{kW}{\cdot}\text{h/kg} (Specific latent heat)3,600,000 J/kg\text{J/kg}
As a unit of specific latent heat

The kilowatt-hour per kilogram is exactly 3.6 × 10⁶ J/kg, or 3.6 MJ/kg. It is the convenient scale for fuels compared against electricity: gasoline is about 12.9 kW·h/kg, which is why the energy density argument in transport is not close and the efficiency argument is.

One kilowatt-hour per kilogram in every specific energy unit

3,600,000joule per kilogram (J/kg)
3,600kilojoule per kilogram (kJ/kg)
3.6megajoule per kilogram (MJ/kg)
1,000watt-hour per kilogram (Wh/kg)
1kilowatt-hour per kilogram (kWh/kg)this unit
1,000kilowatt-hour per tonne (kWh/t)
1,547.72BTU per pound (BTU/lb)
907.185kilowatt-hour per short ton (kWh/ton)

One kilowatt-hour per kilogram in every specific latent heat unit

3,600,000joule per kilogram (J/kg)
1,204,390foot pound-force per pound (ft·lbf/lb)
3,600kilojoule per kilogram (kJ/kg)
3,600joule per gram (J/g)
1,547.72BTU per pound (BTU/lb)
1,000watt-hour per kilogram (W·h/kg)
860.421calorie per gram (cal/g)
860.421kilocalorie per kilogram (kcal/kg)
3.6megajoule per kilogram (MJ/kg)
1kilowatt-hour per kilogram (kW·h/kg)this unit