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How Much Electricity Does a Household Appliance Use?
Use one simple formula to calculate any appliance's electricity use in kWh and its estimated cost, with worked examples, typical wattages and a free calculator.
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Bills, energy, household costs and everyday routines explained clearly.
Everything here helps you understand and trim household costs: what each appliance uses, how to estimate a bill, and how to charge an EV at home. The usage guides include calculators so you can plug in your own numbers instead of generic figures.
What each appliance costs (with calculators)
Each guide explains the formula and lets you calculate with the label or spec sheet of your own appliance.
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How Much Electricity Does a Refrigerator Use? Cost Per Month and Year
Find your refrigerator's yearly kWh on its EnergyGuide label, turn it into a monthly cost with your rate, and learn what helps it use less power.
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How Much Does It Cost to Run a Dryer? Per Load, Per Hour and Per Month
What an electric clothes dryer costs per load, per hour and per month from its wattage and your rate per kWh. Table, calculator and ENERGY STAR facts.
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How Much Does a Space Heater Cost to Run? Per Hour, Per Day and Per Month
Work out what your electric space heater costs per hour, day and month using its wattage and your own rate per kWh. Includes a table and calculator.
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How Much Does It Cost to Charge an Electric Car at Home? How to Calculate It
A simple method to work out the cost of one charge, 100 miles or a year of charging at home, using your own electricity rate and your car's efficiency.
Lowering the bill
Practical ways to use less energy at home.
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How to Lower Your Electric Bill at Home: Practical Ways to Save
Where household electricity goes and what helps: heating and cooling habits, insulation, lighting, appliances, and where to find utility and assistance programs.
Routines and dates
Seasonal reminders for the home.
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Daylight Saving Time Ends November 1, 2026: When to Set Clocks Back and What to Reset
Clocks fall back on Sunday, November 1, 2026. What updates automatically, what you need to change by hand and where DST isn't observed.