Convert Kilowatt Hour to Joule
Use this free converter to change kilowatt hours (kWh) into joules (J). Kilowatt hour and joule both measure energy. As a quick reference, 1 kWh equals 3600000 J, and 1 J equals 2.7778e-7 kWh.
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Joule (J)
3600000
1 kWh = 3600000 J
Energy conversion table
| Kilowatt Hour | Joule |
|---|---|
| 0.01 | 36000 |
| 0.1 | 360000 |
| 0.5 | 1800000 |
| 1 | 3600000 |
| 2 | 7200000 |
| 3 | 10800000 |
| 5 | 18000000 |
| 10 | 36000000 |
| 20 | 72000000 |
| 25 | 90000000 |
| 50 | 180000000 |
| 100 | 360000000 |
| 1,000 | 3600000000 |
How to convert Kilowatt Hour to Joule
Multiply the kilowatt hour value by 3600000 to get joules.
- Enter the number of kilowatt hours you want to convert.
- The converter instantly shows the equivalent value in joules.
- Worked example: 15 kWh × 3600000 = 54000000 J.
- Use the swap button to reverse the conversion (joule to kilowatt hour).
About these units
Kilowatt Hour (kWh)
- Definition
- A kilowatt-hour (kWh) is 1,000 watt-hours, the standard unit on electricity bills.
- History
- It became the billing unit as household electricity spread.
- Current use
- Kilowatt-hours measure home electricity use and EV battery capacity.
Joule (J)
- Definition
- The joule (J) is the SI unit of energy, the work done by a force of one newton over one meter.
- History
- Named after physicist James Prescott Joule, who studied the link between heat and work.
- Current use
- Joules measure energy, work, and heat throughout science and engineering.
Frequently asked questions
How many joules are in a kilowatt hour?
There are 3600000 J in 1 kWh. To convert, multiply the number of kilowatt hours by 3600000.
How do I convert kilowatt hours to joules?
Multiply the kilowatt hour value by 3600000 to get joules. For example, 10 kWh = 36000000 J.
Is this kilowatt hour-to-joule converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert Kilowatt Hour to other energy units
| Unit | 1 Kilowatt Hour equals |
|---|---|
| Joule (J) | 3600000 J |
| Kilojoule (kJ) | 3600 kJ |
| Calorie (cal) | 860420.65 cal |
| Kilocalorie (kcal) | 860.42065 kcal |
| Watt Hour (Wh) | 1000 Wh |
| Electronvolt (eV) | 2.2469e+25 eV |
| British Thermal Unit (BTU) | 3412.1416 BTU |
| Foot-Pound (ft·lb) | 2655223.7 ft·lb |