Convert Joule to Kilowatt-hour
Convert Joule to Kilowatt-hour instantly. 1 J = 0 kWh. Formula, worked examples and a quick reference table.
Last updated
J
kWh
One joule equals 0 kilowatt-hour. To convert any number of joules to kilowatt-hours, multiply by 0.00000028.
The converter above works in both directions and updates as you type. Below you will find the formula, a worked example and a reference table of common values.
Joule to Kilowatt-hour formula
kilowatt-hour = joule × 0.00000028
To go the other way, use joule = kilowatt-hour ÷ 0.00000028.
Joule to Kilowatt-hour conversion table
| Joule | Kilowatt-hour |
|---|---|
| 1 J | 0 kWh |
| 2 J | 0 kWh |
| 3 J | 0 kWh |
| 5 J | 0 kWh |
| 10 J | 0 kWh |
| 20 J | 0 kWh |
| 25 J | 0 kWh |
| 50 J | 0 kWh |
| 100 J | 0 kWh |
| 250 J | 0.0001 kWh |
| 500 J | 0.0001 kWh |
| 1,000 J | 0.0003 kWh |
Frequently asked questions
How many kilowatt-hours are in a joule? +
There are 0 kilowatt-hours in one joule.
What is 10 J in kWh? +
10 J equals 0 kWh. Multiply 10 by 0.00000028.
How do I convert kilowatt-hour back to joule? +
Use joule = kilowatt-hour ÷ 0.00000028. The converter above handles both directions, or see our dedicated Kilowatt-hour to Joule page.