Kilowatt hour (kWh) and joule (J) is the SI unit of which physical quantity? Which of two is a bigger unit of that physical quantity and by what factor?

Both of the two kilowatt hour (kWh) and joule (J) are

the SI unit of energy.Kilowatt hour (kWh) is a bigger

unit of energy. As we know that,

1 Kwh = 3.6 x ${{10}^{6}}$

So , 1 Kwh / 1j = 3.6 x ${{10}^{6}}$