Convert Kilowatt Hour to Watt Hour
Use this free converter to change kilowatt hours (kWh) into watt hours (Wh). Kilowatt hour and watt hour both measure energy. As a quick reference, 1 kWh equals 1000 Wh, and 1 Wh equals 0.001 kWh.
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Watt Hour (Wh)
1000
1 kWh = 1000 Wh
Energy conversion table
| Kilowatt Hour | Watt Hour |
|---|---|
| 0.01 | 10 |
| 0.1 | 100 |
| 0.5 | 500 |
| 1 | 1000 |
| 2 | 2000 |
| 3 | 3000 |
| 5 | 5000 |
| 10 | 10000 |
| 20 | 20000 |
| 25 | 25000 |
| 50 | 50000 |
| 100 | 100000 |
| 1,000 | 1000000 |
How to convert Kilowatt Hour to Watt Hour
Multiply the kilowatt hour value by 1000 to get watt hours.
- Enter the number of kilowatt hours you want to convert.
- The converter instantly shows the equivalent value in watt hours.
- Worked example: 15 kWh × 1000 = 15000 Wh.
- Use the swap button to reverse the conversion (watt hour 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.
Watt Hour (Wh)
- Definition
- A watt-hour (Wh) is the energy of one watt sustained for one hour, equal to 3,600 joules.
- History
- It arose with the electricity industry as a practical billing unit.
- Current use
- Watt-hours rate batteries and small energy stores.
Frequently asked questions
How many watt hours are in a kilowatt hour?
There are 1000 Wh in 1 kWh. To convert, multiply the number of kilowatt hours by 1000.
How do I convert kilowatt hours to watt hours?
Multiply the kilowatt hour value by 1000 to get watt hours. For example, 10 kWh = 10000 Wh.
Is this kilowatt hour-to-watt hour 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 |