At One Place

Watt-hours to kilowatt-hours

1 watt-hour in kilowatt-hours
1 Wh = 0.001 kWh
kWh = Wh × 0.001

To convert watt-hours to kilowatt-hours, multiply by 0.001. The table below gives the values people look up most often, and the converter works for any number.

Watt-hours to kilowatt-hours table

Common watt-hour values converted to kilowatt-hours.
Watt-hours Kilowatt-hours
1 Wh 0.001
2 Wh 0.002
3 Wh 0.003
4 Wh 0.004
5 Wh 0.005
10 Wh 0.01
15 Wh 0.015
20 Wh 0.02
25 Wh 0.025
30 Wh 0.03
40 Wh 0.04
50 Wh 0.05
75 Wh 0.075
100 Wh 0.1
250 Wh 0.25
500 Wh 0.5
1,000 Wh 1

How the conversion works

The relationship is kWh = Wh × 0.001. Both units measure energy, so the conversion is a fixed factor that never changes.

Common questions

How many kilowatt-hours are in one watt-hour?
One watt-hour equals 0.001 kilowatt-hours. kWh = Wh × 0.001.
How do you convert watt-hours to kilowatt-hours?
Use kWh = Wh × 0.001. So 10 Wh is 0.01 kWh.
How many watt-hours are in one kilowatt-hour?
One kilowatt-hour equals 1,000 watt-hours, which is the reverse of the conversion above.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked