How to Use the AC Temperature Savings Calculator
Enter your AC unit's wattage, daily usage hours, monthly usage days, and thermostat settings. The calculator estimates how much electricity cost you save by raising the temperature setting, using a 3% savings per 1°F increase based on US DOE data.
Why Temperature Setting Matters
The US Department of Energy estimates that each 1°F increase in thermostat setting reduces cooling costs by about 3%. Raising the thermostat from 72°F to 76°F could save around 12% on your AC-related electricity bill. Over a full cooling season of 3 months, this adds up to meaningful savings.
Maximize Savings with Fans
Running a ceiling fan creates a wind chill effect that makes 78°F feel like 72°F. This allows you to raise your AC setting by 4°F without losing comfort, potentially cutting cooling costs by 12% or more while the fan uses only 15–75 watts.
Frequently Asked Questions
The US average residential electricity rate is around $0.12–$0.17 per kWh. Check your latest utility bill for your specific rate, which is usually listed under the usage charges section.
Yes — the DOE recommends setting it 7–10°F higher when away for 8+ hours. A programmable or smart thermostat can automate this and save up to 10% annually on heating and cooling.