Free ARV calculator for a house flip.
Paste a listing, or enter an address and an after-repair value. The max offer is 0.70 × ARV − repairs. It runs in your browser, with no account and no card. Address and price alone ask you for an ARV.
Paste a listing. Get the number.
Paste a Zillow or Redfin listing, or enter an address. A max offer appears when you include an ARV, sold comps, or type the ARV yourself. Repairs use what you enter, or a range from size and condition. No account.
The number runs in this browser. A free workspace can research comparable sales after you choose to save the deal.
Paste a listing with sold comps, or enter an ARV. Address and price alone will ask for an ARV instead of inventing one.
Your free workspace can research comparable sales, valuation sources, and tax records, then save the deal for later.
How the flip math works
Every fix-and-flip analysis answers the same three questions, in order:
The 70% rule compresses a flip into one line. Six months of holding costs on a slow flip can eat the margin the rule assumed. The calculator's max offer is always 0.70 × ARV − repairs. When buying, holding, selling, financing, and a $50,000 profit target produce a lower price, that tighter all-in number is shown beside it and labeled. It never sits above the 70% figure. For a line-item repair budget, use the rehab calculator, then read how after-repair value is estimated.
A worked example
This table is the same engine as the form, run on the documented sample inputs: ARV $760,000, repairs $55,000, list price $649,000. Max offer = 0.70 × $760,000 − $55,000 = $477,000. The ARV is the midpoint of the published $740,000 to $780,000 range (Zestimate $741,200 is as-is, not ARV). Load example fills those inputs into the visible fields, and the form computes the same max offer. Address and list price alone do not. At the list price, profit under the calculator's cost stack is -$49,871. See the sample deal report, or read the full 70% rule guide →
Common questions
Is this a free ARV calculator?
Yes. It runs in your browser. A max offer appears when you enter an after-repair value or paste sold comps, sold prices, or an ARV. Address and asking price alone do not invent an ARV. Repairs use a budget you type, or a range from square feet and condition. It is a screen, not an appraisal.
Is this flip calculator really free?
Yes. The calculator on this page runs in your browser with no account and no card. A free Rehabfolio account adds AI comp research, tax records, and the ability to save the deal.
What is the 70% rule?
A quick screen for flip offers: pay at most 70% of the after-repair value (ARV) minus repair costs. On a $300,000 ARV with $40,000 of repairs, the max offer is $170,000. It is a starting point. The full analysis should include financing, holding, and selling costs.
How do I estimate ARV?
ARV comes from recently sold comparable properties: similar beds, baths, square footage, and condition, as close to the subject as possible. Paste those sold prices here, or type the ARV you already believe. Rehabfolio property research, inside a workspace, finds comps with live web search and shows the sources.
What costs does a full flip analysis include?
Purchase price, repairs with a contingency, financing costs, holding costs (interest, taxes, insurance, utilities), buying costs, and selling costs. Profit is what survives all six.
Can the calculator replace my judgment?
No. Every output is a draft estimate. Verify comps, walk the property, and get contractor input before making an offer.
Get comps and sources behind the number.
A free account runs full property research - comparable sales, tax records, and source links - and saves the deal so the analysis becomes your rehab budget if you buy.