How to convert watt-hours to kilowatt-hours
Formula: kWh = Wh × 0.001
Worked example: 60 Wh → 60 × 0.001 = 0.06 kWh
Watt-hours to kilowatt-hours conversion chart
| Watt-hours (Wh) | Kilowatt-hours (kWh) |
|---|---|
| 1 Wh | 0.001 kWh |
| 2 Wh | 0.002 kWh |
| 3 Wh | 0.003 kWh |
| 4 Wh | 0.004 kWh |
| 5 Wh | 0.005 kWh |
| 6 Wh | 0.006 kWh |
| 7 Wh | 0.007 kWh |
| 8 Wh | 0.008 kWh |
| 9 Wh | 0.009 kWh |
| 10 Wh | 0.01 kWh |
| 12 Wh | 0.012 kWh |
| 15 Wh | 0.015 kWh |
| 20 Wh | 0.02 kWh |
| 25 Wh | 0.025 kWh |
| 30 Wh | 0.03 kWh |
| 40 Wh | 0.04 kWh |
| 50 Wh | 0.05 kWh |
| 75 Wh | 0.075 kWh |
| 100 Wh | 0.1 kWh |
| 250 Wh | 0.25 kWh |
| 500 Wh | 0.5 kWh |
| 1,000 Wh | 1 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.
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.