Convert Watt Hours to Kilowatt Hours
1 watt hour = 0.001 kilowatt hours. Type any value below to convert in either direction — the calculation happens in your browser.
Watt Hours to Kilowatt Hours formula
Multiply the number of watt hours by 0.001 to get kilowatt hours.
kilowatt hours = watt hours × 0.001To go the other way: divide the number of kilowatt hours by 0.001, or multiply by 1000.
watt hours = kilowatt hours ÷ 0.001Watt Hours to Kilowatt Hours conversion table
| Watt Hours | Kilowatt Hours |
|---|---|
| 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 |
| 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 |
Kilowatt Hours to Watt Hours conversion table
| Kilowatt Hours | Watt Hours |
|---|---|
| 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 |
About the watt hour
A watt hour is the energy of one watt sustained for one hour, equal to 3,600 joules.
About the kilowatt hour
A kilowatt hour is the unit on your electricity bill — 3.6 million joules.
Frequently asked questions
How many kilowatt hours are in a watt hour?
There are 0.001 kilowatt hours in one watt hour.
How many watt hours are in a kilowatt hour?
There are 1,000 watt hours in one kilowatt hour.
Is this conversion exact?
The ratio between the watt hour and the kilowatt hour is fixed by definition, so the conversion is exact — the figures shown here are rounded for readability only.
What is 10 watt hours in kilowatt hours?
10 watt hours equals 0.01 kilowatt hours.
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