Watt-hours to Kilowatt-hours

Convert watt-hours to kilowatt-hours. Live result, plus a quick-reference table for common values.

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⇆ Convert Kilowatt-hours to Watt-hours instead

Frequently asked questions

How do I convert watt-hours to kilowatt-hours?

Multiply the watt-hour value by 0.001. So 1 watt-hour = 0.001 kWh, and the calculator above does it instantly for any number.

How many kilowatt-hours are in a watt-hour?

There are 0.001 kilowatt-hours in one watt-hour. The reference table shows the conversion for common values.

Is this Wh to kWh converter free?

Yes, completely free, no sign-up, and it runs entirely in your browser, so nothing is uploaded.