Watt-hours to Kilowatt-hours conversion

Watt-hours to Kilowatt-hours conversion table

Watt-hours (Wh)Kilowatt-hours (kWh)
00
10.001
20.002
30.003
40.004
50.005
60.006
70.007
80.008
90.009
100.01
200.02
300.03
400.04
500.05
600.06
700.07
800.08
900.09
1000.1
10001

How to convert watt-hours to kilowatt-hours?

Certainly! Converting Watt-hours (Wh) to Kilowatt-hours (kWh) is quite straightforward. Here's how you do it:

Conversion:

1 Kilowatt = 1,000 Watts

Therefore, to convert Watt-hours to Kilowatt-hours: Energy in kWh=Energy in Wh1,000\text{Energy in kWh} = \frac{\text{Energy in Wh}}{1,000}

So, to convert 1 Wh to kWh: 1Wh=11,000kWh=0.001kWh1 \text{Wh} = \frac{1}{1,000} \text{kWh} = 0.001 \text{kWh}

Real-World Examples:

  1. 100 Wh: 100Wh=1001,000kWh=0.1kWh100 \text{Wh} = \frac{100}{1,000} \text{kWh} = 0.1 \text{kWh}

    • Example: A 10-watt LED bulb running for 10 hours would consume 100 Wh of energy.
  2. 500 Wh: 500Wh=5001,000kWh=0.5kWh500 \text{Wh} = \frac{500}{1,000} \text{kWh} = 0.5 \text{kWh}

    • Example: A laptop that uses 50 watts running for 10 hours would consume 500 Wh.
  3. 1,000 Wh (or 1 kWh): 1,000Wh=1,0001,000kWh=1kWh1,000 \text{Wh} = \frac{1,000}{1,000} \text{kWh} = 1 \text{kWh}

    • Example: A 100-watt incandescent bulb running for 10 hours would consume 1 kWh of energy.
  4. 2,000 Wh (or 2 kWh): 2,000Wh=2,0001,000kWh=2kWh2,000 \text{Wh} = \frac{2,000}{1,000} \text{kWh} = 2 \text{kWh}

    • Example: An air conditioner rated at 1,000 watts running for 2 hours would consume 2,000 Wh or 2 kWh of energy.

Understanding these conversions can help you better manage your electricity usage and understand your electricity bills. For instance, if your electricity rate is 0.12perkWh,youcancalculatethecostofrunningadevice.Usingtheexampleabovefor2kWh:0.12 per kWh, you can calculate the cost of running a device. Using the example above for 2 kWh: \text{Cost} = 2 \text{kWh} \times $0.12/\text{kWh} = 0.240.24

I hope this clarifies the concept for you!

See below section for step by step unit conversion with formulas and explanations. Please refer to the table below for a list of all the Kilowatt-hours to other unit conversions.

What is watt-hours?

A watt-hour is a unit of energy and its units, Wh, are formed with W for watt and h for hour from SI unit system. Its definition, in the context of electricity, is the energy of one watt power flowing for one hour.

Followings equivalent equations are identical but in different units.

1Wh=1Pt=1IVt=3600J=2.2471022eV=8.598105cal1 Wh = 1 Pt = 1 IVt = 3600 J = 2.247 * 10^{22} eV = 8.598*10^5 cal

PPowerP - Power
tTime (in hours. Multiply by 3600 to convert to seconds)t - Time \text{ (in hours. Multiply by 3600 to convert to seconds)}
ICurrentI - Current VVoltsV - Volts
JJoulesJ - Joules
eVElectronvolteV - Electronvolt
calCaloriescal - Calories

Wikipedia page for Kilowatt-hour (watt-hour redirected to kWh) UCI article on Energy Units and Conversions Ian Woofenden's explanation on difference between Watts and Watt-Hours

What is kilowatt-hours?

A Kilowatt-hour is a unit of energy and its units, kWh, are formed with W for watt and h for hour from SI unit system combined with letter k, metric prefix, for 1,000 or 10310^3. Its definition, in the context of electricity, is the energy of one watt power flowing for one hour.

Followings equivalent equations are identical but in different units. Please note that factor 10310^3 is representing Kilo prefix in kWh unit.

1kWh=103Pt=103IVt=3600103J=2.2471022103eV=8.598105103cal1 kWh = 10^3*Pt = 10^3*IVt = 3600 * 10^3*J = 2.247 * 10^{22} * 10^3 eV = 8.598*10^5 * 10^3 cal

PPowerP - Power
tTime (in hours. Multiply by 3600 to convert to seconds)t - Time \text{ (in hours. Multiply by 3600 to convert to seconds)}
ICurrentI - Current VVoltsV - Volts
JJoulesJ - Joules
eVElectronvolteV - Electronvolt
calCaloriescal - Calories

Wikipedia page for Kilowatt-hour (watt-hour redirected to kWh) UCI article on Energy Units and Conversions Ian Woofenden's explanation on difference between Watts and Watt-Hours

Complete Watt-hours conversion table

Enter # of Watt-hours
Convert 1 Wh to other unitsResult
Watt-hours to Watt-seconds (Wh to Ws)3600
Watt-hours to Watt-minutes (Wh to Wm)60
Watt-hours to Milliwatt-hours (Wh to mWh)1000
Watt-hours to Kilowatt-hours (Wh to kWh)0.001
Watt-hours to Megawatt-hours (Wh to MWh)0.000001
Watt-hours to Gigawatt-hours (Wh to GWh)1e-9
Watt-hours to Joules (Wh to J)3600
Watt-hours to Kilojoules (Wh to kJ)3.6
Watt-hours to Megajoules (Wh to MJ)0.0036
Watt-hours to Gigajoules (Wh to GJ)0.0000036
Watt-hours to calories (Wh to cal)860.4206500956
Watt-hours to Kilocalories (Wh to kcal)0.8604206500956