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Free energy consumption by appliance calculator. Enter power draw, run hours, and active days for each electric load to estimate annual kilowatt-hours, electricity cost, and each appliance share of the total. Explore more in our energy and sustainability calculator category.
Last updated: April 18, 2026
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kWh/year
2,610
Annual cost
$418
Planning note
Examples
Fridge, modem
Small average watts times eight thousand seven hundred sixty hours adds up.
Examples
Microwave, iron
Use average daily minutes converted to hours for a fair annual estimate.
Field
Days/yr
Window AC or portable heat can use fewer than three hundred sixty-five active days.
$/kWh
Sensitivity
The same kilowatt-hours cost more where retail rates are higher.
Tip
Bundle loads
Combine chargers and small electronics into one row if metering together.
Total
kWh/yr
Whole-home use exceeds this list if HVAC and major loads are omitted.
Default rows at $0.16/kWh: about 2,610 kWh/yr and $418 annual cost for the sample mix.
Each appliance row converts average power in watts to kilowatts by dividing by one thousand, then multiplies by hours of use per day and days of use per year to obtain kilowatt-hours per year. Rows sum to a total. Multiplying total kilowatt-hours by a single blended electricity price yields estimated annual cost. Percentages allocate total kilowatt-hours across rows for a simple share breakdown.
kWh/yr ≈ (W ÷ 1000) × hours/day × days/yearAnnual $ ≈ total kWh/yr × $/kWhOpen the calculator to see per-appliance kWh, cost, and percentage of the modeled total.
Add HVAC and other major loads if you want the list to approach a full home total.
Share it with anyone building a home energy budget
Suggested hashtags: #Energy #kWh #Appliances #Electricity #Calculator