Real estate investor calculators

Find your maximum offer in one step using the classic flipper's rule of thumb.

Maximum Offer = (ARV × 0.70) − Estimated Rehab Costs

Set your own margin and back into the highest price you can pay.

MAO = (ARV × Buy %) − Estimated Rehab Costs

Estimate a property's renovated value from comparable price per square foot.

ARV ≈ Comparable Price per Sq Ft × Property Square Footage

See your cash left in the deal and cash-on-cash return after the refinance.

Cash Left In = (Purchase + Rehab + Costs) − (ARV × Refi LTV)

Check whether a rental's income covers its debt — the way DSCR lenders do.

DSCR = Net Operating Income ÷ Annual Debt Service

Compare income properties by the return they produce before financing.

Cap Rate = Net Operating Income ÷ Property Value

Measure the real return on the cash you actually put into a deal.

Cash-on-Cash = Annual Pre-Tax Cash Flow ÷ Total Cash Invested

Quickly screen whether a rental's rent clears the 1% benchmark.

Monthly Rent ÷ Purchase Price ≥ 1% (Rent needed = Price × 0.01)

Add up what it costs to carry a flip each month — and across the project.

Total Holding Costs = (Monthly Interest + Taxes + Insurance + Utilities) × Months Held

Ballpark a renovation budget from square footage and rehab level.

Rehab Estimate ≈ Square Footage × Cost per Sq Ft (+ contingency)

Compare rental properties fast with a simple price-to-rent ratio.

GRM = Property Price ÷ Annual Gross Rent

See your projected net profit after every cost a flip carries.

Net Profit = Sale Price − (Purchase + Rehab + Holding + Financing + Selling Costs)

Estimate points, interest, and the monthly payment on a flip loan.

Points = Loan × Points% · Interest ≈ Loan × Rate% × (Months ÷ 12) · Monthly = Loan × Rate% ÷ 12