# AC Energy Cost Calculator - Monthly Cooling Cost Estimate

> Estimate what your air conditioner costs to run each month based on system size, SEER rating and your electricity rate. Free tool from Comfort Pros AZ and CA.

URL: https://www.comfortprosaz.com/tools/energy-cost-estimator/

Free Tool - Calculator

# Energy Cost Estimator

Estimate what your air conditioner costs to run each month, and what a higher-efficiency system would cost instead.

## Your details

Everything updates as you change it. Nothing is sent anywhere.

System size2 tons / 24,000 BTU2.5 tons / 30,000 BTU3 tons / 36,000 BTU3.5 tons / 42,000 BTU4 tons / 48,000 BTU5 tons / 60,000 BTU

On the outdoor unit’s model number, a "36" usually means 36,000 BTU (3 tons).

Efficiency rating (SEER)10 SEER - pre-2006 system13 SEER - 2006 to 201414 SEER - older builder-grade16 SEER - current mid-range18 SEER - high efficiency20+ SEER - variable speed

Hours running per day(hours)

In a Phoenix July, 10 to 14 hours of compressor runtime a day is normal.

Days used per month(days)

Electricity rate(/kWh)

$

APS and SRP customers usually land near $0.15. Southern California Edison rates run considerably higher.

Estimated monthly cooling cost

$124.62

Daily use

27.7 kWh

Monthly use

831 kWh

Cooling season (5 months)

$623

Upgrading to a 16 SEER system would save about

$23.37 /month

Efficiency savings alone rarely pay for a replacement on their own. Run the numbers against the repair cost before deciding.

### There is efficiency headroom here

Your system is below current mid-range efficiency. Worth pricing a replacement against what the next repair will cost, especially if the unit is over 12 years old.

### Want the number for your actual system?

Send us your model number and rate plan and we will tell you what it costs to run, and whether a replacement pays for itself or not.

Estimates use average performance at rated efficiency. Actual cost varies with outdoor temperature, refrigerant charge, duct losses, thermostat setpoint and your utility’s time-of-use structure.

Related services

## What this usually leads to

AC Maintenance & Tune-Ups

[/ac-maintenance/ →](/ac-maintenance/)

 

AC Installation & Replacement

[/ac-installation/ →](/ac-installation/)

 

Duct Cleaning & Sealing

[/duct-cleaning-sealing/ →](/duct-cleaning-sealing/)

More tools

## Other free tools on this site

Sizing

### BTU Calculator

Estimate the cooling capacity a room actually needs, so you can sanity-check any system size you are quoted.

Open

[BTU Calculator →](/tools/btu-calculator/)

 

Diagnostic

### HVAC Service Finder

Answer five questions and find out which HVAC service your situation actually calls for.

Open

[HVAC Service Finder →](/tools/hvac-service-finder/)

 

Plumbing

### Water Usage Calculator

Estimate household water use, what it costs, and how much of it runs through your water heater.

Open

[Water Usage Calculator →](/tools/water-usage-calculator/)

 

Diagnostic

### Plumbing Service Finder

Describe the symptom and find out which plumbing service matches it.

Open

[Plumbing Service Finder →](/tools/plumbing-service-finder/)

![](/images/hero/candid-wide-photo-of-a-technician-shaking-hands-wi.webp)

Same-day appointments available

## Ready for an Honest Number?

Run a real load calculation online, or call the team in your state. Flat-rate pricing either way, and nobody shows up to sell you something bigger than you need.

Get Your TrueQuote

[https://quote.comfortprosaz.com →](https://quote.comfortprosaz.com)

 

(480) 435-2334

[tel:+14804352334 →](tel:+14804352334)

Flat-rate pricing, no upsells Parts and labor warranty Licensed in AZ and CA

California team: 

(818) 690-7951

[tel:+18186907951 →](tel:+18186907951)

 · Text us: 

(818) 489-2826

[sms:+18184892826 →](sms:+18184892826)