Know what every appliance costs to run.
Enter watts, hours, and your electricity rate. Get the daily, monthly, and yearly cost—without guesswork.
This setup uses about 240 kWh in a 30-day month.
Please enter valid values within the ranges shown.
Popular cost checks
Browse all appliancesRates updated from U.S. Energy Information Administration data for 2026-04.
Electricity prices by state
Compare the latest residential rate with the U.S. average of 18.83¢ per kWh.
| State | Avg. rate | Monthly cost* | Vs. U.S. avg. | View |
|---|---|---|---|---|
| California | 35.25¢/kWh | $317.25 | +87% | |
| Texas | 16.99¢/kWh | $152.91 | -10% | |
| Florida | 15.38¢/kWh | $138.42 | -18% | |
| New York | 29.45¢/kWh | $265.05 | +56% | |
| Illinois | 20.47¢/kWh | $184.23 | +9% | |
| Washington | 14.36¢/kWh | $129.24 | -24% |
*Illustrative energy charge at 900 kWh per month. Fixed fees, taxes, and plan rules are not included.
Small habits, measurable savings.
- 01Standby power
Switch off idle entertainment and office gear at the power strip.
- 02Thermostat changes
Compare one degree at a time instead of guessing at a whole season.
- 03Laundry timing
Measure each load and use off-peak hours if your plan rewards them.
Numbers you can check.
Every estimate shows the formula, the rate date, and the source. Change any input to match your home.
- Public data
- Visible formulas
- Editable assumptions
Fresh
cost
guides
- 01How Much Does It Cost to Run an Air Conditioner Per Hour?Calculate an air conditioner's hourly, daily, and monthly electricity cost from its wattage, runtime, and local electric rate.
- 02How Much Does It Cost to Run a Space Heater for 24 Hours?Estimate the daily and monthly cost of a 1,500-watt space heater, then adjust for thermostat cycling and your own electric rate.
- 03How Much Electricity Does a Refrigerator Use Per Month?Turn a refrigerator's annual EnergyGuide estimate or measured daily kWh into a realistic monthly electricity cost.