Cost to Run Appliances by State: Hourly and Monthly

The same appliance costs four times more in Hawaii than in Idaho. These pages price the appliances that actually move a bill against every state rate, so you get a figure that applies where you live rather than a national average that applies nowhere.

Pick your state in the calculator below and it recalculates for any wattage and any run time. The US average is 18.44¢ per kWh; state averages run from 12.35¢ to 52.00¢.

Cost to run anything, in any state

Change any box. The result updates as you type.

State

Power

Use per day

hours

Your electricity rate

USD/kWh

Cost per month

—

Per hour

—

Per day

—

Per year

—

kWh per day

—

Planning estimate. The rate box is prefilled with a regional average; the figure on your own bill is the one that matters. Power is draw while running, not while switched on.

Why a national average is the wrong number

Averages are built by dividing total revenue by total sales across every household in the country. That makes them a fair ranking and a poor quote. A household in Idaho and a household in Hawaii running identical equipment on identical schedules see bills that differ by a factor of four, and no national figure captures either of them.

Climate compounds it. Cooling in Texas runs seven months; in Minnesota it runs eight weeks. Heating runs the other way. So the annual figure for an air conditioner or a heat pump depends as much on where you are as on what you own.

The appliances that matter

Twelve appliances account for most of the variance in a residential bill. Everything else is rounding.

Central air conditioner

3,500 W typical, 8 hours a day assumed. $0.65 an hour at the national average.

Alabama · Alaska · Arizona · Arkansas · California · Colorado · Connecticut · Delaware · District of Columbia · Florida · Georgia · Hawaii · Idaho · Illinois · Indiana · Iowa · Kansas · Kentucky · Louisiana · Maine · Maryland · Massachusetts · Michigan · Minnesota · Mississippi · Missouri · Montana · Nebraska · Nevada · New Hampshire · New Jersey · New Mexico · New York · North Carolina · North Dakota · Ohio · Oklahoma · Oregon · Pennsylvania · Rhode Island · South Carolina · South Dakota · Tennessee · Texas · Utah · Vermont · Virginia · Washington · West Virginia · Wisconsin · Wyoming

Window air conditioner

900 W typical, 8 hours a day assumed. $0.17 an hour at the national average.

Space heater

1,500 W typical, 6 hours a day assumed. $0.28 an hour at the national average.

Electric water heater

4,000 W typical, 3 hours a day assumed. $0.74 an hour at the national average.

Electric clothes dryer

3,000 W typical, 1 hours a day assumed. $0.55 an hour at the national average.

Refrigerator

150 W typical, 8 hours a day assumed. $0.03 an hour at the national average.

Pool pump

1,500 W typical, 8 hours a day assumed. $0.28 an hour at the national average.

Hot tub

1,500 W typical, 4 hours a day assumed. $0.28 an hour at the national average.

Level 2 EV charger

7,200 W typical, 4 hours a day assumed. $1.33 an hour at the national average.

Air-source heat pump

3,000 W typical, 8 hours a day assumed. $0.55 an hour at the national average.

Dehumidifier

500 W typical, 12 hours a day assumed. $0.09 an hour at the national average.

Electric oven

2,400 W typical, 1 hours a day assumed. $0.44 an hour at the national average.

Mini-split heat pump

900 W typical, 8 hours a day assumed. $0.17 an hour at the national average.

Electric tankless water heater

18,000 W typical, 0.5 hours a day assumed. $3.32 an hour at the national average.

Washing machine

500 W typical, 1 hours a day assumed. $0.09 an hour at the national average.

Dishwasher

1,800 W typical, 1 hours a day assumed. $0.33 an hour at the national average.

Microwave oven

1,000 W typical, 0.5 hours a day assumed. $0.18 an hour at the national average.

Humidifier

40 W typical, 10 hours a day assumed. $0.01 an hour at the national average.