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ARV calculator
Estimate after repair value from three comparable sales. Use renovated properties similar to your subject, then explore how rehab costs affect an offer guideline. No signup required.
Run your numbers.
Example values are filled in to get you started. Results update as you change the inputs.
How the math works.
| Measure | Formula |
|---|---|
| Each comparable’s price per square foot | Comparable sale price ÷ comparable living area |
| Estimated ARV | Mean of the three comparable prices per sq ft × subject living area |
| Comparable-implied range | Lowest and highest comp price per sq ft × subject living area |
| Offer guideline | Estimated ARV × selected percentage − rehab − additional cost allowance |
- Use recently sold, renovated comparables with similar location, size, condition, and property type. All three comps are equally weighted. The calculator does not fetch sales or adjust for differences automatically.
- The range reflects only the lowest and highest prices per square foot entered; it is not a statistical confidence interval or an appraisal. Unusual comps can distort the result.
- The 70% starting value is a screening convention, not a universal rule. Adjust the percentage and cost allowance for your own assumptions. The remaining percentage is a buffer, not a calculated profit.
Further reading: DealCheck: estimating ARV from sales comps and living area.
Common questions
Is ARV the purchase price plus renovation costs?
No. ARV estimates what the renovated property could sell for, based on comparable sales. Renovation costs do not necessarily increase market value dollar for dollar.
Does changing the rehab budget change ARV?
Not in this calculator. Comparable sales determine the ARV estimate. Rehab changes the offer guideline, which is a separate calculation.
What if the offer guideline is negative?
Your rehab and additional costs exceed the selected share of estimated ARV. No positive purchase price fits those inputs. Review your assumptions rather than treating the result as an offer recommendation.
Keep checking the deal.
Cap rate calculator
Use this free cap rate calculator to estimate net operating income and capitalization rate from property value, rent, vacancy, and operating expenses.
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