Watt-hours to Kilowatt-hours Converter
Convert watt-hours (Wh) to kilowatt-hours (kWh) instantly. Energy conversions link food labels in kJ and kcal, SP Group bills in kWh and air-conditioner capacity in BTU.
Result
- Kilowatt-hours
- 0.001 kWh
How to use the watt-hours to kilowatt-hours converter
- Enter the watt-hours (Wh).
- The results update as you type, or press Calculate.
- Read the kilowatt-hours first, then the supporting figures below it.
Formula
Kilowatt-hours = watt-hours × 0.001
Worked example
For example, with these inputs:
- Watt-hours (Wh): 1
the calculator returns:
- Kilowatt-hours: 0.001 kWh
Watt-hours to Kilowatt-hours table
| Watt-hours | Kilowatt-hours |
|---|---|
| 1 Wh | 0.001 kWh |
| 2 Wh | 0.002 kWh |
| 5 Wh | 0.005 kWh |
| 10 Wh | 0.01 kWh |
| 20 Wh | 0.02 kWh |
| 25 Wh | 0.025 kWh |
| 50 Wh | 0.05 kWh |
| 100 Wh | 0.1 kWh |
| 250 Wh | 0.25 kWh |
| 500 Wh | 0.5 kWh |
| 1,000 Wh | 1 kWh |
About this conversion
Energy conversions link food labels in kJ and kcal, SP Group bills in kWh and air-conditioner capacity in BTU.
Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.
Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.
Frequently asked questions
How many kilowatt-hours are in one watt-hour?
1 Wh = 0.001 kWh.
How do I convert Wh to kWh?
Kilowatt-hours = watt-hours × 0.001.