kWh Calculator: Estimate Electricity Usage & Costs
A kWh calculator helps you see how much energy each one needs, so you can better understand what makes up your monthly energy bill or find an electricity plan that fits
The Building Energy Consumption Calculator helps you estimate the electricity usage of your building based on the appliances and systems you use, their wattage, and your usage patterns. kWh (kilowatt-hour) is the unit of energy used by utilities to measure electricity consumption. One kWh equals using 1,000 watts for one hour.
Let's consider what this means concretely. An average household uses roughly 10,715 kWh per year, which is 890 kWh per month, or 29 kWh per day. A 10 kW energy generation system would be able to power an average house if it ran for just about 3 hours. So this relatively small system could easily support at least one household.
A typical U.S. household consumes an average of 28-30 kWh of electricity per day. This number fluctuates based on the season, household size, appliance usage, and regional differences in energy consumption. How Many Kilowatts Does a 2000 Square Foot House Use Per Day?
Find power consumption in Wh in kWh per month. Power Consumption (Annual) = Power Usage (Watts) x Time (Hours) x 365 (Days) Example: A 1700 Watts Electric kettle runs for 1 hours daily. Calculate the energy consumption in Wh and kWh in one year.
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