Joules to Kilowatt-hours Converter
How to convert joules to kilowatt-hours
kilowatt-hours = joules ÷ 3,600,000
To convert joules to kilowatt-hours, divide the number of joules by 3,600,000.
1 J = 2.77777778 × 10⁻⁷ kWh
Examples
- 1,000 J ÷ 3,600,000 = 0.000277777778 kWh
- One kilocalorie: 4,184 J ÷ 3,600,000 = 0.00116222222 kWh
Good to know
One kilowatt-hour is exactly 3,600,000 joules: 1000 watts sustained for 3600 seconds.
Joules to kilowatt-hours conversion table
| Joules (J) | Kilowatt-hours (kWh) |
|---|---|
| 1 J | 2.77777778 × 10⁻⁷ kWh |
| 2 J | 5.55555556 × 10⁻⁷ kWh |
| 5 J | 0.00000138888889 kWh |
| 10 J | 0.00000277777778 kWh |
| 20 J | 0.00000555555556 kWh |
| 50 J | 0.0000138888889 kWh |
| 100 J | 0.0000277777778 kWh |
| 200 J | 0.0000555555556 kWh |
| 250 J | 0.0000694444444 kWh |
| 500 J | 0.000138888889 kWh |
| 1,000 J | 0.000277777778 kWh |
| 2,000 J | 0.000555555556 kWh |
| 2,500 J | 0.000694444444 kWh |
| 5,000 J | 0.00138888889 kWh |
| 10,000 J | 0.00277777778 kWh |
Unit definitions
- Joule (J)
- The joule is the SI unit of energy, equal to the work done by a force of one newton over one meter, or one watt for one second.
- Kilowatt-hour (kWh)
- A kilowatt-hour is the energy used by a 1 kilowatt load running for one hour, exactly 3,600,000 joules. It is the unit on electricity bills.