Home/Resources/Article

What Size Air Conditioner Do I Need?

2026-06-13   4 min read

Bigger is not better with air conditioning. An oversized unit short-cycles, leaves your home humid, and wears out faster. Here is how sizing works.

The rough rule

As a starting point, South Florida homes need roughly one ton of cooling per 400 to 600 square feet, adjusted for ceiling height, sun exposure, insulation, and windows. A 1,500 square foot home often lands around 3 tons.

Estimate your size in seconds with our AC size calculator. Try the instant quote

Why a load calculation still matters

Square footage is only a starting point. A Manual J load calculation accounts for your specific home so the system is sized correctly. We run one as part of every replacement quote.

Related services

Ready when you are.

Schedule a visit or call now. A certified technician will get you back to a comfortable temperature.