J to Kilowatt-hours Converter
Convert joules to kilowatt-hours instantly. Free online calculator.
Quick reference:
1 J = 2.777777778e-07 kWh
Tip: You can swap the direction to convert kWh → J.
About Joules and Kilowatt-hours
Joules (J) is a unit of length in the metric system. It is commonly used for everyday measurements such as body height, fabric, furniture, and small distances.
Kilowatt-hours (kWh) is a unit of length in the imperial/US customary system. It is widely used in the United States and in many industries (construction, screens, tools) where inches are standard.
Conversion formulas
- 1 J = 2.777777778e-07 kWh
- 1 kWh = 3600000 J
Tip: You can swap the direction if you want to convert kWh → J.