Kilowatt-hours (kWh) to Watts Electrical Conversion Calculator

Convert kilowatt-hours to watts by entering energy in kWh and time in hours.

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How to Convert Kilowatt-Hours to Watts

A watt, expressed as W, is a measure of power while a kilowatt-hour is a measure of energy equivalent to 1,000 watt-hours, or 1,000 watts of power for 1 hour. So, to convert kilowatt-hours to watts, multiply the energy in kilowatt-hours by 1,000 to find the energy in watt-hours, then divide by the time in hours.

Use this formula to convert watts to kilowatt-hours:

watts = (kWh × 1,000) ÷ hrs

For example: let’s find the watts of power for 3kWh of energy used in 6.5 hours.

watts = (3 kWh × 1,000) ÷ 6.5 hrs
watts = 3,000 ÷ 6.5 hrs
watts = 461.54 W

Common Kilowatt-Hour to Watt Conversions

Common kilowatt-hour to watt conversions for a 1-hour time period.
Energy in Kilowatt-hours Power in Watts
1 kWh 1,000 W
2 kWh 2,000 W
3 kWh 3,000 W
4 kWh 4,000 W
5 kWh 5,000 W
6 kWh 6,000 W
7 kWh 7,000 W
8 kWh 8,000 W
9 kWh 9,000 W
10 kWh 10,000 W

You might also find our watts to kWh conversion calculator helpful.