Real Estate Investment Calculators

Built for real estate investors, these calculators help you analyze rental properties, compare deals, and estimate returns at a glance. Each tool is designed for fast, focused deal analysis — so you can run the numbers without building spreadsheets from scratch.

Financing

Mortgage payment calculator Calculate your monthly principal and interest payment on any loan amount, interest rate, and term. Mortgage affordability calculator Estimate how much property you can afford based on your income, debts, down payment, and current interest rates. Down payment calculator Calculate your required down payment amount, resulting loan size, and loan-to-value ratio for any purchase price and down payment percentage. Loan-to-value (LTV) calculator Measure your leverage by calculating the ratio of your loan amount to the property’s appraised value. Debt service coverage ratio (DSCR) calculator Determine whether a property’s income is sufficient to cover its debt obligations — a key metric lenders use to qualify investment loans. Closing cost calculator Estimate the total cash needed to close on a property, including title, escrow, lender fees, and other acquisition costs. Rent vs. buy calculator Analyze the true long-term financial impact of renting versus buying to make a more informed housing decision.

Acquisition & flipping

Fix and flip profit calculator Calculate your true net profit, ROI, and annualized return on a flip after accounting for every cost from purchase through sale. After repair value (ARV) calculator Estimate a property’s resale value after renovations to determine whether a deal has enough margin before you commit. Maximum allowable offer (MAO) calculator Use the 70% Rule to determine the highest price you should pay for a property and still hit your profit target.

Rental analysis

Cap rate calculator Measure a property’s income potential relative to its value — independent of financing — to compare investment opportunities. Cash flow calculator Calculate monthly and annual cash flow on a rental property after all operating expenses and debt service are accounted for. Cash on cash return calculator Measure your annual cash return relative to the actual cash you invested to evaluate deal quality and compare properties. Net operating income (NOI) calculator Calculate a property’s income after operating expenses, before debt service — the foundation of most rental property analysis. Rental property ROI calculator Measure the total return on a rental property investment including cash flow, appreciation, and equity buildup over time. Rental yield calculator Calculate the annual rental income a property generates as a percentage of its purchase price or current market value. Vacancy rate impact calculator See how different vacancy rates affect your annual rental income and determine how much buffer your deal can absorb. Break-even ratio calculator Determine what percentage of gross income is needed to cover all expenses and debt service on a rental property.

Quick comparison metrics

Price per square foot calculator Compare properties on an equal footing by calculating cost or value per square foot to identify pricing outliers. Price-to-rent ratio calculator Compare the cost of buying versus renting in any market to evaluate whether a market favors owners or renters. Gross rent multiplier (GRM) calculator Quickly compare rental properties by measuring how many years of gross rent it would take to equal the purchase price. Rent-to-value (RTV) calculator Check whether a rental property meets the 1% rule by comparing monthly rent to purchase price as a quick deal screening tool.