Arv Calculator
Solve arv problems step-by-step with formula explanation and worked examples
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About Arv Calculator
ARV Calculator - Estimate After Repair Value for Real Estate Investments
If you flip houses, wholesale properties, or invest in rental real estate, the After Repair Value (ARV) is one of the most important numbers in your entire analysis. ARV is the estimated market value of a property after all renovations and repairs are completed. Get it right, and your deal pencils out. Get it wrong, and you could lose your shirt. This ARV Calculator helps you estimate ARV using comparable sales data and planned renovation costs, putting solid numbers behind what is often a gut-feel decision.
What Is ARV and Why Does It Matter?
After Repair Value is not a vague aspiration - it should be a data-driven estimate anchored in recent comparable sales (comps) in the same neighborhood. Lenders use ARV to determine how much they will finance. Hard money lenders, for example, typically loan 65–75% of ARV. If your ARV estimate is inflated, you may get a loan you cannot profitably repay. If it is too conservative, you might pass on a deal that would have been profitable.
The Basic ARV Formula
ARV = Purchase Price + Value of Renovations
But this simplified formula can mislead. A more reliable approach is to start with comparable sales:
ARV = Average Comp Sale Price (adjusted for differences)
The calculator supports both methods. Enter comp sale prices and the tool averages them, optionally adjusting for square footage, lot size, and feature differences. Alternatively, enter the purchase price and planned renovation details for a cost-based estimate.
How to Use the Calculator
Start by entering comparable property sale prices - ideally three to five properties that sold within the last six months within a half-mile radius. The calculator computes the average and median comp price. Then enter any adjustments - if your property has an extra bedroom compared to the average comp, add value; if it lacks a garage, subtract. The adjusted figure is your ARV estimate. For cost-based estimation, enter the purchase price and itemized renovation costs, and the tool adds them up.
The 70% Rule
Most house flippers use the 70% rule as a quick screening heuristic:
Maximum Purchase Price = (ARV × 0.70) − Repair Costs
This ensures a roughly 30% margin to cover holding costs, selling costs (realtor commissions, closing costs), and profit. The calculator applies this rule automatically once you have an ARV and repair estimate, telling you the maximum you should offer for the property.
Common Renovation Cost Items
The calculator includes preset cost ranges for common repairs: kitchen remodel (10,000–40,000 dollars), bathroom remodel (5,000–20,000 dollars), roof replacement (8,000–15,000 dollars), HVAC system (5,000–10,000 dollars), flooring (3,000–10,000 dollars), paint interior/exterior (2,000–8,000 dollars). These are rough national averages - local costs vary significantly. Use them as starting points and adjust based on contractor quotes for your specific market.
Pitfalls in ARV Estimation
Cherry-picking comps. It is tempting to use the highest comp sale to justify a deal. Resist that urge. Use a representative sample that includes mid-range sales, and always check that the comps are truly comparable in size, condition, and location.
Over-improving. Renovating a property beyond the neighborhood's standard does not proportionally increase ARV. A luxury kitchen in a neighborhood of starter homes will not command luxury prices. Match your renovations to the local market.
Ignoring market trends. A falling market can erode ARV between purchase and sale. If home prices in the area are declining, bake a conservative adjustment into your estimate.
Who Uses ARV Calculations?
House flippers use ARV to determine maximum offer prices and project profitability. Wholesalers include ARV in their assignment contracts to demonstrate value to end buyers. Hard money lenders underwrite loans based on ARV. Real estate agents advise investor clients using ARV analysis.
Run Your ARV Analysis
Enter your comp data and renovation estimates. This ARV Calculator delivers a clear, data-backed valuation - free, instant, and entirely browser-based.