ARV calculator: after repair value from three sold houses
How the calculator works
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Price per square foot of each sale
Sale price divided by living area. $210,000 over 1,500 sq ft is $140.
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The average of the three
Add them and divide by three. Leave a sale out by clearing its price.
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Times your house’s size
$140 times 1,430 sq ft is $200,200.
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Plus or minus your adjustment
Subtract for a missing bathroom or garage your comparables had, add for one they lacked.
What the number does not tell you
The result is only as good as the three sales. Use renovated houses of similar size, age and style, sold recently and nearby, and drop the outliers. The ARV guide shows how to pick them for free.
Price per square foot flattens real differences. A corner lot, a busy road or a finished basement move value in ways an average cannot see: that is what the adjustment field is for.
An ARV is your estimate, not an appraisal. A buyer’s appraiser or a lender may come in lower.
Questions people ask
How do I calculate the ARV?
Divide each comparable’s sale price by its living area, average those figures, multiply by your property’s living area, and adjust for differences. This calculator does those steps.
How many comps do I need for ARV?
This calculator takes three. With fewer, one odd sale counts too much, so look for three good ones before you trust the number.
How do I calculate 70% of ARV?
Multiply the ARV by 0.7, then subtract repairs to get the most a flipper will pay. The deal calculator does it.
Can I find ARV by address for free?
Free tools such as Propwire list comparable sales for an address. Pick the renovated ones and enter them here.
How we put this together
- The arithmetic, checked by hand against the example on our ARV guide
- The pages that rank for “arv calculator” in the US, read November 2026
The default numbers are an example, not sales data. The calculator does not look up sales: you enter them.