Kilowatt-hours to Watt-hours
Convert kilowatt-hours to watt-hours (kWh to Wh). 1 kWh = 1,000 Wh. Use the calculator, formula and conversion table.
How to convert kilowatt-hours to watt-hours
Multiply the amount in kilowatt-hours by 1,000 to get watt-hours. The displayed factor and results are rounded to 12 significant digits.
Wh = kWh × 1,000Worked example
1 kWh = 1,000 Wh. Change the amount in the calculator above to use your own value.
Units and assumptions
A watt-hour is 3,600 joules. Calories use the thermochemical definition (4.184 J); BTU uses the International Table definition.
Calculator results use floating-point arithmetic and are rounded for display. The reference table below uses up to 12 significant digits.
Kilowatt-hours to Watt-hours table
| Kilowatt-hours (kWh) | Watt-hours (Wh) |
|---|---|
| 0 | 0 |
| 1 | 1,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 25 | 25,000 |
| 100 | 100,000 |
| 1,000 | 1,000,000 |
About this conversion
What is the formula for kilowatt-hours to watt-hours?
Wh = kWh × 1,000. Multiply the amount in kilowatt-hours by 1,000 to get watt-hours. The displayed factor and results are rounded to 12 significant digits.
How do I convert back to kilowatt-hours?
Use the watt-hours to kilowatt-hours calculator to reverse this conversion. You can also use Swap units in the calculator above.
Can I use a different pair of units?
Choose another unit in the calculator, or open the energy converter to browse all supported pairs.