kWh to Watts Calculator | PES Supply
kWh to Watts Calculator
Convert kilowatt-hours to watts. Enter kWh and time period to calculate the wattage of your electrical devices.
Formula
kWh to Watts Conversion Table
| kWh | 1 Hour | 5 Hours | 24 Hours |
|---|---|---|---|
| 1 kWh | 1,000W | 200W | 42W |
| 5 kWh | 5,000W | 1,000W | 208W |
| 10 kWh | 10,000W | 2,000W | 417W |
| 20 kWh | 20,000W | 4,000W | 833W |
| 50 kWh | 50,000W | 10,000W | 2,083W |
Energy Planning Applications
- Determine appliance wattage from monthly energy bills
- Size solar arrays based on daily kWh consumption
- Calculate generator runtime needed for battery charging
- Plan backup power capacity for critical loads
How do I convert kWh to watts?
Multiply kWh by 1,000 to get watt-hours, then divide by the number of hours: Watts = (kWh x 1000) / Hours.
What uses 30 kWh per month?
30 kWh/month over 30 days = 1 kWh/day. At 5 hours of daily use, that's (1 x 1000) / 5 = 200W device. Common for a refrigerator or LED lighting system.