Kilowatt-hours to Joules

Convert kilowatt-hours to joules instantly — type a value, get the answer.

OfficeBuild an invoiceFill, preview, and download a clean invoice PDF in minutes.Open
Joules3,600,000.0000J

Multiply kilowatt-hours by 3600000 to get joules. 1 kWh = 3600000 J.

Kilowatt-hours (kWh)Joules (J)
1 kWh3,600,000 J
2 kWh7,200,000 J
5 kWh18,000,000 J
10 kWh36,000,000 J
25 kWh90,000,000 J
50 kWh180,000,000 J
100 kWh360,000,000 J

Common kilowatt-hours-to-joules conversions, rounded to 4 decimals.

How to convert kilowatt-hours to joules

Multiply the number of kilowatt-hours by 3600000. For example, 10 kWh × 3600000 = 36,000,000 J. The converter above does this for any value instantly, and the table below lists the conversions people look up most.

Converting joules back to kilowatt-hours

To go the other way, divide the J value by 3600000 — or multiply by 0. So 1 J ≈ 0 kWh.

Questions

How many joules are in a kilowatt-hour?
One kilowatt-hour equals 3600000 joules. Multiply any kWh figure by 3600000 to convert it to J.
How do I convert joules back to kilowatt-hours?
Divide the J value by 3600000, or multiply by 0. For example, 5 J ≈ 0 kWh.
What is 10 kWh in J?
10 kWh = 36,000,000 J. Type any value into the converter above to see its joules equivalent.