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Appliance electricity cost calculator
That space heater is not $30. It's a line item.
Choose a common appliance or enter any wattage, add your hours per day and electricity rate, and see exactly what that device costs to run.
Results
Yearly cost
$0.00
What this device costs to run
Per day$0.00
Per month (30 days)$0.00
Per year$0.00
Energy used$0.00
Wattage$0.00
A 1,500 W space heater at 4 hrs/day and 16¢/kWh costs about $288/year — often more than the heater itself.
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The usual suspects
Heating and cooling dominate home electricity: space heaters, electric dryers, and window ACs draw 1,000–3,000 watts, while a modern TV or LED bulb sips under 150. Cost scales with watts × hours, so a “small” heater run all winter dwarfs a big TV used two hours a night.
Average vs rated wattage
Labels show maximum draw. Fridges, ACs, and anything with a thermostat cycle on and off — a 150 W fridge might average 40–60 W over a day. For cycling appliances, use the average from a plug meter or your bill math, not the sticker.
Where to cut
Attack the biggest yearly-cost numbers first: shorter dryer cycles, a degree or two on the thermostat, and killing the always-on space heater beat unplugging phone chargers by two orders of magnitude.
Frequently asked questions
How much does it cost to run a space heater?
A 1,500 W heater at 4 hours/day and 16¢/kWh costs about $0.96/day — roughly $29/month or $288/year if run year-round.
What uses the most electricity in a home?
Electric heating/cooling, water heating, and dryers — all 1,000+ watt devices run for hours. Electronics and lighting are rounding errors by comparison.
How do I find my electricity rate?
Check the supply/delivery lines on your bill and divide total cost by kWh used — the all-in ¢/kWh is what matters, not just the supply rate.
Do appliances use power when off?
Some do (standby/vampire draw), but it's usually 1–5 watts — pennies a month. Focus on the big heating loads first.
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