Watts to kWh

Watts (W)

Time

Hours

Days

Enter the values above

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Example of Watts to kWh Calculations

To convert watts (W) to kilowatt-hours (kWh), you need to understand the relationship between these two units.

The formula to convert watts to kilowatt-hours is:

kWh = W/1000

This formula shows that 1 kWh is equal to 1000 watts used for one hour.

Below is a table showing the conversion of various watt values to kilowatt-hours, sorted from smallest to largest.

Watts (W)	kWh	Watts (W)	kWh
50.00	0.05	150.00	0.15
60.00	0.06	200.00	0.20
100.00	0.10	250.00	0.25
120.00	0.12	300.00	0.30
400.00	0.40	800.00	0.80
500.00	0.50	1000.00	1.00
1200.00	1.20	1400.00	1.40
1440.00	1.44	1500.00	1.50
1800.00	1.80	2000.00	2.00
2400.00	2.40	3000.00	3.00
3500.00	3.50	3600.00	3.60
4000.00	4.00	4800.00	4.80
12000.00	12.00	15000.00	15.00
18000.00	18.00	72000.00	72.00

To convert 400 watts to kilowatt-hours:

kWh=400/1000=0.4kWh

To convert 1000 watts to kilowatt-hours:

kWh=1000/1000=1kWh

To convert 1500 watts to kilowatt-hours:

kWh=1500/1000=1.5kWh