Watt-hour to Kilowatt-hour Converter
Convert watt-hours to kilowatt-hours with this free energy converter. The exact relationship used on this page is 1 watt-hour = 0.001 kilowatt-hours. Type any number — the result updates instantly, works on phones and desktops, and is ready to copy into homework, a spec sheet, or a shopping list.
Formula: Kilowatt-hour = Watt-hour × 0.001
How to convert watt-hours to kilowatt-hours
- Enter the value in watt-hours in the converter.
- Read the equivalent amount in kilowatt-hours.
- Use the swap link if you need kilowatt-hour to watt-hour instead.
- Check the table for common values without typing.
Worked examples
- 1 Wh = 0.001 kWh
- 5 Wh = 0.005 kWh
- 10 Wh = 0.01 kWh
- 25 Wh = 0.025 kWh
Conversion table
Common watt-hours values converted to kilowatt-hours.
| Wh | kWh |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 3 | 0.003 |
| 4 | 0.004 |
| 5 | 0.005 |
| 6 | 0.006 |
| 7 | 0.007 |
| 8 | 0.008 |
| 9 | 0.009 |
| 10 | 0.01 |
| 20 | 0.02 |
| 50 | 0.05 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 1,000 | 1 |
About this conversion
Watt-hour (Wh) and Kilowatt-hour (kWh) are both energy units. Energy converters connect food labels (kcal), electricity bills (kWh), physics (joules), and heating (BTU). Bookmark this URL when you convert watt-hours to kilowatt-hours often, then explore related pairs in the same category if you need a different target unit.
Need the other direction? Open the kilowatt-hour to watt-hour converter.
FAQ
How many kilowatt-hours are in 1 watt-hour?+
1 watt-hour equals 0.001 kilowatt-hours.
What is the formula to convert watt-hours to kilowatt-hours?+
Kilowatt-hour = Watt-hour × 0.001
How do I convert watt-hours to kilowatt-hours by hand?+
Multiply the watt-hour value by 0.001. Example: 10 watt-hours × 0.001 = 0.01 kilowatt-hours.
Is this Wh to kWh converter accurate?+
Yes. Linear conversions use internationally agreed factors relative to SI. Temperature and inverse fuel units use the standard offset or reciprocal formulas, not a guessed scale factor.