How do I calculate my electric bill?

Multiply the kWh you use by your rate per kWh, then add any fixed monthly charge and taxes. At the U.S. average of 18.0¢ per kWh (12 months to July 2026), 900 kWh comes to about $162. EIA averages already spread fixed charges over each kWh, so multiplying by the average rate gives a close estimate for typical use.

How much does 1,000 kWh of electricity cost?

About $180 at the U.S. average rate. It ranges from about $123 in North Dakota (12.3¢ per kWh) to $435 in Hawaii (43.5¢).

How much does it cost to run a space heater?

A 1,500-watt space heater running 8 hours a day uses about 360 kWh a month, roughly $65 at the U.S. average rate. Most heaters cycle on and off, so actual use is often lower.

Electric Bill Calculator: Estimate Your Bill From kWh, by State

Electric bill calculator

Enter how many kWh you use to estimate your monthly bill at your state's or utility's average rate. Rates come from U.S. Energy Information Administration data and update monthly.

Estimate your bill from kWh

State

Electricity used per month

kWh

Utility (optional)

Or your own rate (optional)

¢/kWh

Estimated monthly bill

$158

$1,897 a year

866 kWh × 18.3¢ (the Ohio average)

Averages include fixed charges spread over every kWh, so very low or very high usage can differ from your actual bill. Taxes may be extra.

Want to know whether your usage is normal, not just what it costs? Check your bill against similar homes.

What does an appliance cost to run?

Appliance

State

Power

watts

Hours per day

Cost per month

$65.70

360 kWh a month

1,500 W × 8 h × 30 days at 18.3¢ (Ohio average)

Wattages are typical examples; check the label on your device. Heaters and AC cycle on and off, so real use is often lower than the rating.

Common questions

How do I calculate my electric bill?: Multiply the kWh you use by your rate per kWh, then add any fixed monthly charge and taxes. At the U.S. average of 18.0¢ per kWh (12 months to July 2026), 900 kWh comes to about $162. EIA averages already spread fixed charges over each kWh, so multiplying by the average rate gives a close estimate for typical use.
How much does 1,000 kWh of electricity cost?: About $180 at the U.S. average rate. It ranges from about $123 in North Dakota (12.3¢ per kWh) to $435 in Hawaii (43.5¢).
How much does it cost to run a space heater?: A 1,500-watt space heater running 8 hours a day uses about 360 kWh a month, roughly $65 at the U.S. average rate. Most heaters cycle on and off, so actual use is often lower.