NerdyWatts

Electricity rate calculator

Pick your state and enter your typical monthly usage. Every residential tariff on file is priced against it, tiers and time-of-use schedules included.

The US residential average is roughly 900–1,100 kWh per month.
Older filings are usually below what the utility now charges. Uncheck to see everything.

How to read these numbers

The figure shown is an annual total at your stated usage held constant across the year, divided back out to an effective rate that includes fixed charges. That is why a tariff with a low energy rate can rank below one with a higher rate but no monthly charge.

For flat and tiered rates the result depends only on how much you use. For time-of-use rates it also depends on when you use it, which no public dataset contains, so we apply a documented average residential usage pattern. If your usage is unusually concentrated in the evening peak, or you charge an EV overnight, your real bill will differ. The methodology sets out the assumed profile in full.

Tariffs are not always available to every customer: some require electric heating, a demand meter, or enrollment in a specific program. Check with the utility before switching.