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Appliance running-cost calculators

Choose an appliance to see its electricity cost per hour, day, month and year at your own rate. Monthly figures below assume typical usage at the U.S. average $0.1816/kWh — every page lets you change both.

Heating & cooling

The biggest numbers on almost every electricity bill. Heating and cooling is where a single appliance can cost more than everything else in the house put together — and where the difference between resistance heat and a heat pump is measured in hundreds of dollars a season.

11 calculators

Kitchen

Kitchen appliances split cleanly in two: the fridge and freezer that never switch off, and everything else that draws a lot of power for a few minutes at a time. Both are cheaper to run than most people expect — but for opposite reasons.

13 calculators

Laundry & water

Heating water is the expensive part. A washing machine barely registers; the dryer that follows it, and the tank quietly reheating itself all day, are what show up on the bill.

7 calculators

Entertainment & office

Individually small, collectively constant. A TV, a couple of computers, a router that never sleeps and a monitor left on add up to a steady background load that runs every hour you are awake.

9 calculators

Outdoor & big-ticket

Pool pumps, hot tubs, EV charging and mining rigs: the loads that can rival a whole household on their own. These are the ones worth modelling properly rather than guessing at.

9 calculators

Lighting & small

Lighting is where the cheapest fix in the house lives. Everything here costs pennies to run — but an incandescent bulb costs several times what an LED does for exactly the same light, every hour, for years.

5 calculators

Heating & cooling

The biggest numbers on almost every electricity bill. Heating and cooling is where a single appliance can cost more than everything else in the house put together — and where the difference between resistance heat and a heat pump is measured in hundreds of dollars a season.

Kitchen

Kitchen appliances split cleanly in two: the fridge and freezer that never switch off, and everything else that draws a lot of power for a few minutes at a time. Both are cheaper to run than most people expect — but for opposite reasons.

Laundry & water

Heating water is the expensive part. A washing machine barely registers; the dryer that follows it, and the tank quietly reheating itself all day, are what show up on the bill.

Entertainment & office

Individually small, collectively constant. A TV, a couple of computers, a router that never sleeps and a monitor left on add up to a steady background load that runs every hour you are awake.

Outdoor & big-ticket

Pool pumps, hot tubs, EV charging and mining rigs: the loads that can rival a whole household on their own. These are the ones worth modelling properly rather than guessing at.

Lighting & small

Lighting is where the cheapest fix in the house lives. Everything here costs pennies to run — but an incandescent bulb costs several times what an LED does for exactly the same light, every hour, for years.

Not sure where to start?

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The appliance atlas

A collection of household appliances
Illustrative imagery · 1 of 4
A collection of household appliances
Illustrative imagery · 2 of 4
More the appliance atlas
A collection of household appliances
Illustrative imagery · 3 of 4
A collection of household appliances
Illustrative imagery · 4 of 4