Know what a fair price looks like before the first contractor visit. These calculators estimate installed prices by state and compare what different systems cost to run.
Each system type starts from a national installed-price range built from published 2025–2026 cost guides. The range is split into equipment and labor, then adjusted for efficiency, installation access and a labor-cost index for your state, from about 0.90 in Mississippi to 1.30 in Alaska and Hawaii. Ductwork, permits, electrical upgrades and other extras are listed as separate lines, the way they appear on a contractor's quote.
| Project | Typical range |
|---|---|
| Central AC, 3 ton | $4,700 – $8,000 |
| Gas furnace, 80,000 BTU, 80% AFUE | $3,000 – $5,300 |
| AC + gas furnace together, 3 ton / 80,000 BTU | $7,250 – $12,500 |
| Ducted heat pump, 3 ton | $5,800 – $10,500 |
| Ductless mini split, 3 zones | $5,500 – $10,500 |
National averages for standard efficiency with existing ductwork, before state adjustment.