Power in watts (W) to energy in kilowatt-hours (kWh) calculator and calculation formula.
Enter the power in watts, consumption time period in hours and press the Calculate button:
So The energy E in kilowatt-hours (kWh) is equal to the power P in watts (W), times the time period t in hours (hr) divided by 1000.
E(kWh) = P(W) × t(hr) / 1000
What is the energy consumption in watt-hour when the power consumption is 4000 watts for time duration of 3 hours?
E = 4000W × 3h / 1000 = 12 kWh
What is the energy consumption in watt-hour when the power consumption is 6000 watts for time duration of 3 hours?
E = 6000W × 3h / 1000 = 18 kWh
What is the energy consumption in watt-hour when the power consumption is 7000 watts for time duration of 3 hours?
E = 7000W × 3h / 1000 = 21 kWh
What is the energy consumption in watt-hour when the power consumption is 8000 watts for time duration of 3 hours?
E = 8000W × 3h / 1000 = 24 kWh
Here is a conversion Table converting common values of watts to kilowatt hours, over a duration of one hour and one day.
|Watts (W)||Kilowatt Hours (kWh) @ 1 hour||Kilowatt Hours (kWh) @ 1 day|
|100 W||0.1 kWh||2.4 kWh|
|200 W||0.2 kWh||4.8 kWh|
|300 W||0.3 kWh||7.2 kWh|
|400 W||0.4 kWh||9.6 kWh|
|500 W||0.5 kWh||12 kWh|
|600 W||0.6 kWh||14.4 kWh|
|700 W||0.7 kWh||16.8 kWh|
|800 W||0.8 kWh||19.2 kWh|
|900 W||0.9 kWh||21.6 kWh|
|1000 W||1 kWh||24 kWh|
|1500 W||1.5 kWh||36 kWh|
|2000 W||2 kWh||48 kWh|
|2500 W||2.5 kWh||60 kWh|
|3000 W||3 kWh||72 kWh|
|3500 W||3.5 kWh||84 kWh|
|4000 W||4 kWh||96 kWh|
|4500 W||4.5 kWh||108 kWh|
|5000 W||5 kWh||120 kWh|
|10000 W||10 kWh||240 kWh|
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