kWh to W Conversion Calculator Energy to Power Calculations
What is a Kilowatt-Hour?
A kilowatt-hour, otherwise known as a kWh, is a way to measure how much energy you’re using.
It’s not the number of kilowatts you’re using in an hour, even though that seems to make sense. A kWh equals the amount of energy you would use by keeping a 1,000 watt appliance running for one hour. In metric, 1,000 = kilo, so 1,000 watts equals a kilowatt.
For instance, if you turned on a 100 watt bulb, it would take 10 hours to use one kilowatt-hour of energy. A 2,000 watt appliance, on the other hand, would only take half an hour. It all comes down to dividing the number of watts in an appliance into 1,000.
What is a Watt?
A watt is a unit of power, named after engineer James Watt, which measures the rate of energy transfer. A watt, in electrical terms, is the rate at which electrical work is done when one ampere (A) of current flows through one volt (V)
KWh to watts calculation
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.
Kilowatts-hour to watts calculation formula
The power P in watts (W) is equal to 1000 times the energy E in kilowatt-hour (kWh), divided by the time period t in hours (hr)
P_{(W)} = 1000 × E_{(kWh)} / t_{(hr)}
So
watt = kilowatt-hour / hour
or
W = 1000 × kWh / h
Example
What is the power consumption in watts when the energy consumption is 15 kilowatt-hour for time duration of 3 hours?
P = 1000 × 15 kWh / 3 h = 5000 W
KWh to watts Conversion Chart:
S. No |
kWh |
Hours |
Watt |
1 |
0.75 |
24 |
31.25 |
2 |
1.1 |
24 |
45.83 |
3 |
1.5 |
24 |
62.5 |
4 |
2.2 |
24 |
91.67 |
5 |
3.7 |
24 |
154.17 |
6 |
5.5 |
24 |
229.17 |
7 |
7.5 |
24 |
312.50 |
8 |
11 |
24 |
458.33 |
9 |
15 |
24 |
625.00 |
10 |
22 |
24 |
916.67 |
11 |
37 |
24 |
1541.67 |
12 |
50 |
24 |
2083.33 |
13 |
75 |
24 |
3125.00 |
14 |
90 |
24 |
3750.00 |
15 |
110 |
24 |
4583.33 |
16 |
132 |
24 |
5500.00 |
17 |
150 |
24 |
6250.00 |
18 |
175 |
24 |
7291.67 |
19 |
220 |
24 |
9166.67 |
20 |
250 |
24 |
10416.67 |
21 |
280 |
24 |
11666.67 |
22 |
310 |
24 |
12916.67 |
23 |
350 |
24 |
14583.33 |
24 |
375 |
24 |
15625.00 |
25 |
420 |
24 |
17500.00 |