How to convert kilowatt-hours to watt-hours
Formula: Wh = kWh × 1,000
Worked example: 100 kWh → 100 × 1,000 = 100,000 Wh
Kilowatt-hours to watt-hours conversion chart
| Kilowatt-hours (kWh) | Watt-hours (Wh) |
|---|---|
| 1 kWh | 1,000 Wh |
| 2 kWh | 2,000 Wh |
| 3 kWh | 3,000 Wh |
| 4 kWh | 4,000 Wh |
| 5 kWh | 5,000 Wh |
| 6 kWh | 6,000 Wh |
| 7 kWh | 7,000 Wh |
| 8 kWh | 8,000 Wh |
| 9 kWh | 9,000 Wh |
| 10 kWh | 10,000 Wh |
| 12 kWh | 12,000 Wh |
| 15 kWh | 15,000 Wh |
| 20 kWh | 20,000 Wh |
| 25 kWh | 25,000 Wh |
| 30 kWh | 30,000 Wh |
| 40 kWh | 40,000 Wh |
| 50 kWh | 50,000 Wh |
| 75 kWh | 75,000 Wh |
| 100 kWh | 100,000 Wh |
| 250 kWh | 250,000 Wh |
| 500 kWh | 500,000 Wh |
| 1,000 kWh | 1,000,000 Wh |
What is a kilowatt-hour?
The kilowatt-hour equals 1,000 watt-hours, or 3.6 megajoules. It is the unit on every electricity bill and for electric car batteries: a 2,000 W heater running for 3 hours uses 6 kWh.
What is a watt-hour?
The watt-hour is the energy used by a one-watt device in one hour, 3,600 joules. Battery capacities of phones, laptops and power banks are often given in Wh; airlines generally allow power banks up to 100 Wh in cabin baggage.