How many watt-hours are in one kilowatt-hour?
One kilowatt-hour equals exactly 1000 watt-hours.
Convert Kilowatt-hour (kWh) to Watt-hour (Wh) instantly.
Calculation
value × 1000
| Quick Conversion | Converted |
|---|---|
| 1 kWh | 1,000 Wh |
| 5 kWh | 5,000 Wh |
| 10 kWh | 10,000 Wh |
| 100 kWh | 100,000 Wh |
| 1,000 kWh | 1,000,000 Wh |
A kilowatt-hour is the energy delivered by one kilowatt of power over one hour.
Kilowatt-hours became the standard billing and reporting unit for larger electrical energy values.
kWh is used for utility bills, appliances, electric vehicles, solar production, home batteries, and grid energy.
A watt-hour is the energy delivered by one watt of power over one hour.
Watt-hours became common for smaller electrical storage and consumption values.
Wh is used for batteries, electronics, chargers, portable power, solar devices, and small electrical energy estimates.
Mathematically, watt-hour (Wh) = kilowatt-hour (kWh) converted with the formula below.
1 kWh = 1,000 Wh
1 Wh = 0.001 kWh
Formula: value × 1000
Example: 15 kWh = 15,000 Wh
Precision note: Use the exact scale relationship 1 kWh = 1000 Wh. Any uncertainty comes from the source measurement or rating, not the conversion factor.
1 kWh = 1,000 Wh
1 Wh = 0.001 kWh
| Kilowatt-hour [kWh] | Watt-hour [Wh] |
|---|---|
| 0.01 kWh | 10 Wh |
| 0.1 kWh | 100 Wh |
| 1 kWh | 1,000 Wh |
| 2 kWh | 2,000 Wh |
| 5 kWh | 5,000 Wh |
| 10 kWh | 10,000 Wh |
| 20 kWh | 20,000 Wh |
| 50 kWh | 50,000 Wh |
| 100 kWh | 100,000 Wh |
One kilowatt-hour equals exactly 1000 watt-hours.
0.75 kWh equals 750 Wh.
Yes. Kilo means one thousand, so the relationship between kWh and Wh is exact.