Calculators
Planning tools for appliances & sensible home choices, with visible assumptions and units.
Estimate the cost of one air-fryer meal by combining the appliance's electricity use with the ingredients used. Enter the air fryer's rated power, cooking time, your electricity price, and ingredient cost. This simple estimate excludes preheating differences, standby use, taxes or fees not included in your electricity price, and other meal-preparation costs.
Estimate a yearly filter budget from the number of filters, replacement frequency, and the price per filter. The estimate assumes each filter costs the same and excludes tax, shipping, and other costs unless included in the price you enter.
Estimate an appliance's electricity cost over a selected number of days using its rated power, hours of use per day, and your electricity price. This worksheet assumes the appliance draws its stated wattage throughout the entered usage time. It converts watts to kilowatts and multiplies kilowatt-hours by the rate you provide. Actual consumption and bills can differ.
Estimate the parts budget for a planned appliance installation. Enter the quantity and reader-provided price per unit for each parts category you expect to buy. This is a parts-only budget estimate; it does not estimate labor, delivery, taxes, or whether the appliance can be installed at a particular location.
Estimate an appliance purchase budget by adding appliance prices and listed delivery, installation, and removal costs, then applying a user-entered contingency percentage to that subtotal.
Divide a reader-entered upfront investment by positive expected annual net savings. The result is a simple undiscounted payback period, not a forecast, recommendation or calculation of the underlying savings.
Compare the warranty premium with the expected covered repair cost over the same warranty period. Enter your own estimates. This limited planning model assumes one possible repair, uses your estimated probability that it occurs during the period, and assumes the repair would be fully covered. It excludes deductibles, coverage limits, exclusions, time value of money, and repairs outside the warranty period.
Estimate the purchase cost per liter of usable freezer capacity by dividing the freezer's price by its stated capacity. This simple comparison does not account for energy use, delivery, installation, or differences in usable space.
Estimate the total counter area reserved for one appliance, including user-entered clearance on each side. Enter dimensions in inches. This is a rectangular planning estimate; it does not account for irregular shapes or overlapping clearance with nearby objects.
Estimate a dehumidifier’s electricity consumption and energy cost from its rated power, average operating hours, days of use, and electricity price. The estimate assumes the unit draws its rated power throughout the entered operating time.
Estimate the electricity, water, and detergent cost of one dishwasher cycle using your appliance's energy and water use and the rates you enter.
Compare estimated ownership costs for two appliances using their labeled annual energy use, your electricity rate, purchase prices, and a chosen comparison period. The estimate includes purchase price and electricity only.
Estimate a fan's electricity cost from its wattage, daily operating time, days of use, and electricity price. The estimate assumes steady wattage and a constant price per kilowatt-hour.
Estimate the usable storage volume of a freezer by subtracting space taken by shelves, drawers, baskets, and other internal obstructions from its measured interior volume. Enter all volumes in liters.
Estimate a microwave's electricity use and energy cost from its input power, daily operating time, days used, and your electricity rate. The estimate uses rated input power and does not account for standby consumption or billing adjustments.
Estimate a refrigerator's yearly electricity cost from its energy use, daily operating time, and your electricity rate. This simplified estimate assumes the entered energy use is a steady average and excludes other household charges.
Estimate the electricity cost of one tumble dryer cycle from its energy use and your electricity rate. Enter the dryer’s energy use in kilowatt-hours per cycle and the price you pay per kilowatt-hour.
Estimate the electricity cost of running a vacuum cleaner from its power use, weekly operating time, electricity price, and number of weeks. This estimate assumes the vacuum draws its stated wattage while in use.
Estimate the household cost of one washing machine load from electricity, water, detergent, and the washer’s purchase price spread across its expected lifetime loads. Enter your own prices and usage assumptions.
Estimate water used per laundry load from the washer's stated water use and the number of loads. This worksheet uses the figures you provide and does not predict a machine's actual cycle consumption.