Energy conversion
1 kilowatt-hour (kWh) equals 1,000 watt-hour (Wh). Enter any value below to convert from kWh to Wh.
Enter a value and choose units. Results update instantly.
1 kWh = 1,000 Wh
| Unit | Value |
|---|---|
| Joule J | 3,600,000 |
| Kilojoule kJ | 3,600 |
| Thermochemical calorie cal | 860,420.6500956023 |
| Kilocalorie kcal | 860.4206500956 |
| Watt-hour Wh | 1,000 |
| Kilowatt-hour kWh | 1 |
| BTU (International Table) BTUₕᵀ | 3,412.1416331279 |
| Foot-pound ft·lb | 2,655,223.7373981564 |
| Electronvolt eV | 2.2469432668e25 |
Formula
Use this relationship for a direct conversion:
2 kWh = 2,000 Wh.
The thermochemical calorie and International Table BTU are named explicitly to avoid ambiguous legacy definitions.
Quick reference
| Kilowatt-hour (kWh) | Watt-hour (Wh) |
|---|---|
| 0.01 | 10 |
| 0.1 | 100 |
| 1 | 1,000 |
| 2 | 2,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 1,000 | 1,000,000 |
From unit
One thousand watt-hours.
Symbol: kWh
To unit
The energy from one watt sustained for one hour.
Symbol: Wh
Keep converting
Source
Definitions are checked against NIST SP 811: Energy units. Calculations use full internal precision before display rounding.
View the complete energy converterQuestions
Use the formula Wh = kWh x 1,000. 1 kilowatt-hour (kWh) equals 1,000 watt-hour (Wh).
Both unit definitions use exact factors. Only the displayed decimal may be rounded.
