Convert Wh to kWh

Watt hours to kilowatt hours. Enter a value to convert, or use the Wh to kWh chart further down the page.

1 Wh = 0.001 kWh

1 watt hour equals 0.001 kilowatt hours. Going the other way, 1 kilowatt hour = 1,000 watt hours.

How to convert Wh to kWh

To convert watt hours to kilowatt hours, multiply the watt hour value by 0.001. You can also divide by 1000 to get the same answer.

kWh = Wh × 0.001

Convert 15 Wh to kilowatt hours:

15 Wh = 0.015 kWh

Use this Wh to kWh table for quick reference without typing anything.

A watt hour is exactly 3,600 joules — the energy used by a one-watt device in one hour. Battery capacity is rated in watt hours.

A kilowatt hour is the energy used by a 1,000-watt device running for one hour: exactly 3.6 megajoules. It is the unit on electricity bills.

How many kWh are in a watt hour?

1 Wh equals 0.001 kWh. Going the other way, 1 kWh is 1,000 Wh.

How do you convert Wh to kWh?

To convert watt hours to kilowatt hours, multiply the watt hour value by 0.001. You can also divide by 1000 to get the same answer.

What is 10 Wh in kWh?

10 Wh equals 0.01 kWh. The conversion chart on this page lists the other values people look up most often.