Free Financial Calculators

Tools built for landlords and investors. No sign-up required — just run the numbers.

Mortgage Calculator

Full amortization schedule with extra payment modeling. See how much you can save by paying extra each month.

Analyze cash-on-cash return, cap rate, monthly cash flow, and 10-year equity projection for any rental property.

Calculate capitalization rate, NOI, gross rent multiplier, and see property value at different cap rates.

Measure the actual return on the cash you put into a rental — down payment, closing, and rehab — after the mortgage is paid.

Quickly screen rental deals. See if monthly rent covers 1% of total acquisition cost for positive cash flow.

Calculate exact partial month rent for any move-in or move-out date. Visual calendar with daily breakdown.

Compare the total cost of renting vs. buying a home over time. Factor in appreciation, investment returns, and selling costs.

See how your money grows over time with compound returns. Compare conservative, balanced, and aggressive scenarios.

Add up your assets, subtract your liabilities. Organized by category with real-time totals.

10,000-trial Monte Carlo simulation. Model your portfolio, income, expenses, and taxes. See your probability of success.

RentalSlate helps independent landlords track tenants, leases, maintenance, finances, and taxes — all in one place.