Electricity bill calculator
Estimate your electricity cost from monthly kWh.
Enter the kilowatt-hours you use in a month and your electricity price to estimate the energy portion of your bill.
Monthly usage
Your electricity estimate
Estimated energy cost = monthly kWh × electricity price. Fixed charges, taxes, credits, demand charges, and special tariffs are not modeled separately.
Best input
Use your own bill when you can.
Your monthly kWh and actual rate are more useful for a personal estimate than a statewide average.
Why totals differ
Your final bill can include more than energy.
Utilities may add fixed customer charges, taxes, riders, credits, time-of-use pricing, or other line items.
How to use the result
What this calculator is estimating
The calculator multiplies your monthly electricity use by the electricity price you enter. If you use 900 kWh at 16¢/kWh, the simple energy estimate is $144. That is useful for comparing usage levels, checking the energy portion of a bill, or asking how much a change in consumption might cost.
It is not automatically the same as the amount due on a utility statement. Many bills also contain fixed customer charges, taxes, credits, riders, minimum charges, tiered rates, or time-of-use pricing.
Finding the right inputs
Use kWh from your bill—not the dollar total.
Look for total kilowatt-hours used during the billing period. Then find the usage-based electricity price that best represents another kWh of consumption. If your bill splits energy, delivery, and other per-kWh charges into separate lines, you may need to combine the usage-based pieces.
A statewide EIA residential average is a reasonable starting point when you do not know your own rate, but your actual tariff can be higher or lower.
A better month-to-month comparison
Compare kWh per day when billing periods have different lengths.
A 33-day bill can be higher than a 28-day bill even if your household behavior barely changed. Divide monthly kWh by the number of billing days when you want to compare consumption patterns more fairly.
For a deeper walkthrough of the line items on a bill, see How to Read an Electric Bill.