55 appliance cost calculators
Each calculator starts with a realistic wattage and runtime preset, seasonal usage, and every state's current average electricity price — or your exact bill rate.
Heating & cooling
The biggest loads in almost every home — AC, heaters, fans and pumps.
Central air conditioner The biggest single line on most summer power bills.
~3,500 W · 8h/day →
Window air conditioner Cheap to buy; the running cost depends on runtime.
~900 W · 8h/day →
Portable air conditioner Convenient, but the least efficient way to cool a room.
~1,100 W · 8h/day →
Ductless mini-split Inverter compressors sip power once the room is at temperature.
~800 W · 8h/day →
Central heat pump Heats and cools — usually the cheapest electric heat available.
~3,000 W · 6h/day →
Space heater 1,500 watts adds up faster than most people expect.
~1,500 W · 6h/day →
Electric baseboard heater Simple, silent, and one of the priciest ways to heat.
~1,500 W · 8h/day →
Infrared heater Feels warmer instantly — costs the same per watt as any heater.
~1,500 W · 6h/day →
Oil-filled radiator Steady, quiet heat — same cost per watt as any electric heater.
~1,200 W · 7h/day →
Furnace blower fan The hidden electric cost of a gas furnace.
~500 W · 6h/day →
Ceiling fan Pennies a day — and it lets you raise the AC setpoint.
~60 W · 8h/day →
Whole-house fan A fraction of AC cost when evenings are cool.
~400 W · 3h/day →
Attic fan Cools the attic — the bill impact is modest either way.
~300 W · 6h/day →
Humidifier Evaporative units are cheap; steam units are not.
~40 W · 10h/day →
Electric fireplace The flame effect is cheap — the heater element is not.
~1,400 W · 4h/day →
Dehumidifier Basement units quietly run long hours all summer.
~500 W · 10h/day →
Kitchen
Refrigeration runs all day; cooking appliances run hot but short.
Refrigerator Runs 24/7, but the compressor only works part-time.
~150 W · 8h/day →
Garage refrigerator Usually an old unit in a hot space — a double penalty.
~200 W · 10h/day →
Upright freezer Frost-free convenience costs extra energy.
~120 W · 8h/day →
Chest freezer The cheapest cold storage per cubic foot.
~90 W · 8h/day →
Microwave High draw, short bursts — cheaper than the oven for small jobs.
~1,100 W · 0.25h/day →
Electric oven Preheating and long bakes are where the money goes.
~2,400 W · 1h/day →
Electric stove burner A large coil burner on high is a 3 kW load.
~2,000 W · 1h/day →
Induction cooktop Highest efficiency in the kitchen — ~90% of energy hits the pan.
~1,800 W · 0.75h/day →
Air fryer A small convection oven — fast, and cheap per meal.
~1,500 W · 0.5h/day →
Toaster oven The right tool for anything smaller than a casserole.
~1,200 W · 0.5h/day →
Coffee maker Brewing is cheap; the warming plate is the sneaky part.
~1,000 W · 0.3h/day →
Electric kettle The most efficient way to boil water in a US kitchen.
~1,500 W · 0.2h/day →
Countertop ice maker A tiny freezer that works surprisingly hard.
~120 W · 8h/day →
Dishwasher Most of the energy goes to heating water.
~1,500 W · 1h/day →
Laundry & water
Water heating and drying clothes — quiet heavyweights on the bill.
Electric water heater Second-largest electricity user in most all-electric homes.
~4,500 W · 3h/day →
Heat pump water heater Same hot water for about a third of the electricity.
~550 W · 4h/day →
Electric tankless water heater Enormous draw, but only while hot water is flowing.
~18,000 W · 1h/day →
Washing machine Cold washes make it one of the cheapest appliances.
~500 W · 0.75h/day →
Electric clothes dryer Around 3 kWh per load for a standard electric dryer.
~3,000 W · 1h/day →
Heat pump dryer Slower cycles, less than half the energy per load.
~900 W · 1.5h/day →
Well pump A ½–2 HP motor that runs whenever water flows.
~1,000 W · 2h/day →
Sump pump Cheap insurance — until a wet spring runs it nonstop.
~800 W · 1h/day →
Home & outdoor
Pools, hot tubs, workshops and everything else around the house.
Pool pump A quiet four-figure annual cost in many sunbelt homes.
~1,100 W · 6h/day →
Hot tub Mostly a water heater that lives outside.
~3,000 W · 3h/day →
Electric sauna A big heater used in short sessions.
~6,000 W · 1h/day →
Heated floor About 12 watts per square foot, every hour it's on.
~1,200 W · 6h/day →
Garage heater Heating an uninsulated garage is the expensive part.
~5,000 W · 4h/day →
Aquarium Heater, filter, lights — a small but constant load.
~100 W · 12h/day →
Grow lights Long photoperiods make wattage really matter.
~400 W · 14h/day →
E-bike charging Pennies per charge — the cheapest vehicle you own.
~150 W · 3h/day →
Electric scooter charging A commuter scooter charges for well under a dime.
~120 W · 4h/day →
Electronics & always-on
Small watts, long hours — devices that never really turn off.
Gaming PC A serious rig under load is a real appliance.
~450 W · 4h/day →
Television Modern TVs are cheap to run — size and brightness matter.
~100 W · 5h/day →
Home server 24/7 duty makes even modest watts add up.
~100 W · 24h/day →
NAS (network storage) Each spinning drive adds 5–8 watts, all day long.
~40 W · 24h/day →
Wi-Fi router & modem Always on, but mercifully small.
~15 W · 24h/day →
Security camera system The NVR usually draws more than the cameras.
~30 W · 24h/day →
Standby (vampire) power The load that never turns off — typically 5–10% of a bill.
~75 W · 24h/day →
EV charging
Cost per mile, per charge and per month of home charging.