Rex says
Money math without the spreadsheet headache. Plug in your numbers and I'll show you exactly where the dollars land.
Try a scenario
Click to load — tweak from there.Inputs
Result
Your price per square foot
$200
Estimated value at comp rate
$441,000
Difference vs comp $/sq ft
-$10
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One click, a permanent link with your numbers baked in.
How to use this
- 1Enter home price (yours or estimated) ($).
- 2Enter finished square footage (sq ft).
- 3Enter local comp price/sq ft (optional) ($/sq ft).
- 4Read your your price per square foot on the right — it updates as you type.
- 5Hit Share to keep the scenario or send it to someone.
About this calculator
Price per square foot is a quick way to compare your home's value against neighborhood comps: divide the sale or estimated price by the finished square footage. This calculator also lets you estimate a value by applying a local price-per-square-foot comp to your home's size.
Worked example
Using the values the calculator loads with:
Inputs
- Home price (yours or estimated): 420000 $
- Finished square footage: 2100 sq ft
- Local comp price/sq ft (optional): 210 $/sq ft
Results
- Your price per square foot: $200
- Estimated value at comp rate: $441,000
- Difference vs comp $/sq ft: -$10
What each field means
Inputs
- Home price (yours or estimated) ($)
- The home price (yours or estimated) used in the calculation, measured in $. Starts at 420000 $ so you have a working example on load.
- Finished square footage (sq ft)
- The finished square footage used in the calculation, measured in sq ft. Starts at 2100 sq ft so you have a working example on load.
- Local comp price/sq ft (optional) ($/sq ft)
- The local comp price/sq ft (optional) used in the calculation, measured in $/sq ft. Starts at 210 $/sq ft so you have a working example on load.
Results
- Your price per square foot
- Returned as a money amount in US dollars and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Estimated value at comp rate
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Difference vs comp $/sq ft
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
How much is my house worth per square foot?
A $420,000 home with 2,100 finished square feet works out to $200 per square foot; compared to a neighborhood comp of $210/sq ft, that suggests the home may be undervalued by about $21,000.
Is price per square foot a reliable valuation tool?
It's a useful sanity check but not a full appraisal — it ignores lot size, condition, upgrades, and layout, so two homes at the same $/sq ft can have very different actual market appeal.
Should I use finished or total square footage?
Use finished, livable square footage only — unfinished basements or garages are typically excluded or counted at a steep discount in real appraisals and comps.
Why does price per square foot vary so much by neighborhood?
Land value, school districts, and local demand drive most of the variation — the same house built in two different zip codes can carry a 2-3x difference in $/sq ft purely from location.
Accuracy and limitations
- Results are estimates before tax, fees, and inflation unless an input explicitly covers them.
- Rates are treated as fixed for the whole period — variable-rate products will drift from this projection.
- This is educational maths, not financial advice. Check anything contractual with the lender or your accountant.
Related tools
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). How Much Is My House Worth Per Square Foot?. Retrieved from https://www.revenuelab.fyi/toolbox/how-much-is-my-house-worth-per-square-foot
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/how-much-is-my-house-worth-per-square-foot" target="_blank" rel="noopener">How Much Is My House Worth Per Square Foot? — RevenueLab</a> (2026).</p>
Source: [How Much Is My House Worth Per Square Foot? — RevenueLab](https://www.revenuelab.fyi/toolbox/how-much-is-my-house-worth-per-square-foot) (2026).