House Flip Calculator

Analyze fix-and-flip deals before you commit

What is this? House flipping is high-speed real estate investing. You buy a distressed property below market value, renovate it, and sell quickly. The math has to work from day one — this calculator checks if a deal makes money or bleeds it.

The 70% rule: Smart flippers won't pay more than 70% of After Repair Value minus renovation costs. That 30% buffer covers profit AND the inevitable surprises that cost more than you planned.

Who it's for: Real estate investors evaluating fix-and-flip opportunities.

Deal Numbers

Purchase Price ($)

After Repair Value ($)

Renovation Cost ($)

Holding Period (months)

Hard Money Rate (%/mo)

Cash Down Payment ($)

Selling Costs

Agent Commission (%)

Closing Costs (%)

Tax + Insurance ($/mo)

Utilities While Holding ($/mo)

Results

Total Cash In

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Gross Profit

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Net Profit

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ROI on Cash

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Cost of Capital

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Net/Month

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Not financial advice. Flipping carries significant risk. Actual costs vary. Consult a real estate professional.

House Flipping & Real Estate Tools

Tools that pair well with this calculator — selected by our team.

DealCheck →

30% recurring through Awin — flip analysis

BiggerPockets →

Real estate investor community

Tool	Best For	Network
DealCheck	30% recurring through Awin	Awin
BiggerPockets	Real estate investor community	Direct

We may earn a commission if you click above. Calculator is free to use.

Frequently Asked Questions

How accurate should flip estimates be?

Aim for ±10% on purchase price and ARV. Renovation costs should be ±15%. Holding costs and selling costs are usually predictable. The biggest errors come from underestimating renovation scope and duration.

What holding costs should I budget for?

Mortgage payment, property taxes, insurance, utilities, and HOA fees. Add 2-3 months of holding costs as a buffer for unexpected delays. In hot markets, holding costs can quickly erode margin.

What is the 70% rule?

Max offer = ARV × 70% - repair costs. This ensures at least 10% gross margin after selling costs. In competitive markets, you may need to offer 65-68% of ARV to win deals.