Convert Kilowatt-hours to Watt-hours
kWh to Wh · energy conversion
What are kilowatt-hours and watt-hours?
A kilowatt-hour is 1,000 watt-hours, the unit electric utilities bill by. A watt-hour is the energy of one watt sustained for one hour, equal to 3,600 J. For reference: a food Calorie is one kilocalorie (4,184 J), and home electricity is billed in kilowatt-hours.
How to convert kilowatt-hours to watt-hours
1 kWh = 1,000 Wh. To convert, multiply the number of kilowatt-hours by 1,000. For example, 5 kWh = 5,000 Wh, and 20 kWh = 20,000 Wh. To go the other way, multiply watt-hours by 0.001 (since 1 Wh = 0.001 kWh).
Kilowatt-hours to Watt-hours conversion table
| Kilowatt-hours (kWh) | Watt-hours (Wh) |
|---|---|
| 1 | 1,000 |
| 10 | 10,000 |
| 100 | 100,000 |
| 500 | 500,000 |
| 1,000 | 1,000,000 |
| 2,000 | 2,000,000 |
| 5,000 | 5,000,000 |
FAQ
What is 1 kWh in Wh?
1 kWh = 1,000 Wh. To convert any amount, multiply the number of kilowatt-hours by 1,000.
How do I convert watt-hours back to kilowatt-hours?
Go the other way: 1 Wh = 0.001 kWh, so multiply watt-hours by 0.001 to get kilowatt-hours.
Is a kilowatt-hour bigger than a watt-hour?
Yes — 1 kWh is the larger unit, equal to 1,000 Wh.
Are these energy conversions exact?
They use the standard internationally-defined conversion factors. Results are rounded to six significant figures for readability, which is accurate enough for everyday and most technical use.