REALASTAT
Free Tool

Fix & Flip Calculator

Profit, ROI, holding costs, and break-even ARV with hard money modeled. Free, no signup.

Deal Inputs

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Hard money typically 10–20%
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Results

ProfitableROI 25.4%
Gross Profit$22,116
Cash Invested$87,057
Total Project Cost$240,057
Holding Costs$8,397
Sale Costs$18,200
Net Sale Proceeds$109,173
Annualized ROI57.3%
Break-Even ARV$420,382
70% Rule MAO$151,000

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The two numbers most flip estimates miss

Holding costs and break-even ARV. Every month you hold, you pay the loan whether the rehab is on schedule or not, so this calculator adds monthly debt service times your hold period to the cost basis. And break-even ARV tells you how far the sale price can slip before profit hits zero. If your expected ARV and break-even ARV sit within a few percent of each other, you are underwriting hope.

The 70% rule, built in

The classic screen: pay no more than 70% of ARV minus rehab. The calculator shows the 70% rule MAO next to your actual numbers so you can see whether the deal passes both the rule of thumb and the real math. They disagree more often than you would think, and when they do, trust the full model.