Watt-hour to Kilowatt-hour
1 Wh = 0.001 kWh
Precision & format
1 Wh equals
0.001kWh
All 21 units
- JouleJ3,600
- KilojoulekJ3.6
- MegajouleMJ0.0036
- GigajouleGJ0.0000036
- MillijoulemJ3,600,000
- Calorie (thermochemical)calexactly 4.184 J860.4206501
- Kilocalorie (thermochemical)kcalfood Calorie0.8604206501
- Calorie (IT)cal (IT)International Table859.8452279
- Kilocalorie (IT)kcal (IT)0.8598452279
- Watt-hourWh1
- Kilowatt-hourkWh0.001
- Megawatt-hourMWh0.000001
- BTU (IT)BTUInternational Table3.412141633
- BTU (thermochemical)BTU (th)3.414425093
- Therm (US)thm100 000 BTU0.00003412956341
- Foot-poundft·lbf2,655.223737
- Ergerg36,000,000,000
- ElectronvolteV2.246943267 × 10²²
- KiloelectronvoltkeV2.246943267 × 10¹⁹
- MegaelectronvoltMeV2.246943267 × 10¹⁶
- Tonne of oil equivalenttoe8.598452279 × 10⁻⁸
Watt-hour to Kilowatt-hour table
| Watt-hour (Wh) | Kilowatt-hour (kWh) |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 50 | 0.05 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 1,000 | 1 |
How the conversion works
Multiply the watt-hour figure by 0.001 to get kilowatt-hour. Every factor on this site is anchored to the SI base unit for energy, so the same number is used everywhere it appears.
Going the other way, 1 kWh = 1,000 Wh — see kilowatt-hour to watt-hour.
