justyourcalculatorElectricity Cost Calculator
Daily, monthly and yearly running cost for your appliances.
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Electricity Calculator
What your appliances cost to run
Cost per month
$36.58
$1.20 a day, $438.95 a year
- Energy per day
- 6.872 kWh
- Energy per month
- 209 kWh
- Energy per year
- 2,508 kWh
- Cost per year
- $438.95
Default rate: about 17.5 cents per kWh, the 2025 U.S. average residential price (EIA). Check your bill for your own rate. A month is 365 ÷ 12 days.
- Refrigerator (avg draw)$7.67
- LED TV$2.66
- Space heater$23.95
- LED bulbs$2.30
| Appliance | kWh/day | Per day | Per month | Per year |
|---|---|---|---|---|
| Refrigerator (avg draw) | 1.44 | $0.25 | $7.67 | $91.98 |
| LED TV | 0.5 | $0.09 | $2.66 | $31.94 |
| Space heater | 4.5 | $0.79 | $23.95 | $287.44 |
| LED bulbs | 0.432 | $0.08 | $2.30 | $27.59 |
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How the electricity calculator works
Energy (kWh) = watts × hours ÷ 1,000. Cost = kWh × your rate. A 1,500 W heater running 3 hours a day uses 4.5 kWh a day, about $0.79 at 17.5 cents per kWh.
The label wattage is the maximum. Appliances that cycle on and off (fridges, freezers, air conditioners) average much less over a day, so use their average draw or yearly kWh ÷ 8,760 hours.
Using and checking your result
Published by JustYourCalculator. Check the units and assumptions above, and compare a known example before relying on the output. Calculations use browser arithmetic and may round displayed values.
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