Free planning tool
Calculate the cost of running an appliance
Estimate an appliance’s daily, monthly and annual electricity cost from its wattage, use time and your electricity rate.
Actual consumption can differ: devices may cycle on and off, draw less than their nameplate rating, or use standby power. Use this as a helpful estimate.
Find the biggest opportunities
Try the calculator with your highest-use devices first: space heating and cooling, water heating, clothes dryers, ovens, pool pumps and electric vehicle charging. Small daily reductions on high-wattage appliances can add up quickly.
Reading your electricity rate
Look for the total cost per kilowatt-hour on a recent bill. If your utility has time-of-use pricing, run separate estimates using the relevant peak and off-peak rates.