Cost Per Square Foot Calculator
Calculate price per square foot for any home and instantly compare to your local market. Includes comparable sales analysis, quality adjustments, city comparisons, and investment property metrics.
Enter up to 3 comparable home sales to calculate average $/sqft and see how your home stacks up.
| Property | Sale Price | Square Feet | $/sqft | vs. Your Home |
|---|---|---|---|---|
| Your Home | $450,000 | 2,100 sqft | $214 | — |
| Comp 1 | $430,000 | 2,050 sqft | $210 | +$5/sqft more |
| Comp 2 | $465,000 | 2,200 sqft | $211 | +$3/sqft more |
| Comp 3 | $420,000 | 1,980 sqft | $212 | +$2/sqft more |
| Average of Comps | — | — | $211 | +$3/sqft vs avg |
How to Use This Calculator
This calculator computes the price per square foot for any home and benchmarks it against local market averages, comparable sales, and major US city data.
Quick Calculator
Enter your Home Price and Square Footage, then select your City / Market. The calculator shows your $/sqft and compares it to both your city average and the national average — instantly showing whether you are above or below market.
Advanced Tier
The Comp Analysis tab calculates $/sqft for up to 3 comparable sales and shows whether your home is priced above or below the comparable average. Adjustments refines raw $/sqft by accounting for finished basement, garage spaces, lot size, age, and condition. City Comparison shows your $/sqft ranked against 15 major US markets.
Pro Tier
Renovation Value Add calculates ROI for different types of square footage additions. Trend Analysis shows historical $/sqft data from 2020–2025 and forecasts future values. Investment Property converts $/sqft into cap rate, gross rent multiplier, and price-to-rent ratio metrics for rental analysis.
The Price Per Square Foot Formula
Market Comparison:
Over/Under Market = Your $/sqft − City Average $/sqft
Fair Value Estimate = Comparable Average $/sqft × Your Square Footage
Adjusted Value (with features):
Adjusted Price = (Base Price + Basement Adj + Garage Adj + Lot Adj + Age Adj) × Condition Multiplier
Adjusted $/sqft = Adjusted Price / Square Footage
Renovation ROI = (Value Added − Renovation Cost) / Renovation Cost × 100
The most important caveat: always compare homes with similar finished space definitions. MLS listings typically report above-grade square footage only. A home listed at $200/sqft with 1,000 sqft of finished basement is very different from one with no basement at the same listed $/sqft.
Example: Evaluating a Home in Denver, CO
Home: $550,000 | 2,400 sqft | Denver Market
| Your Home Price | $550,000 |
| Square Footage | 2,400 sqft |
| Your $/sqft | $229/sqft |
| Denver Market Average | $420/sqft |
| Your Price vs. Market | $191/sqft BELOW average |
| Implied Fair Value | $1,008,000 |
| Adjustment Analysis | |
| Finished Basement (600 sqft) | +$39,000 |
| 2-Car Garage | +$16,000 |
| 25-Year Age | −$12,500 |
| Good Condition (+3%) | +$17,474 |
| Adjusted Value | $609,974 |
Note: Large discrepancies between your $/sqft and the market average usually mean different square footage definitions, location within the metro, or lot/basement differences — not necessarily a bargain or overpricing. Always investigate why.