Real Estate Calculators
Analyze property investments, mortgages, rental yields, and determine if a property is right for you.
Property Investment Analysis
Analyze your real estate investment with purchase price, down payment, financing, costs, and rental income. Calculate cash-on-cash return.
Cap Rate Calculator
Calculate the capitalization rate for real estate properties to analyze investment potential.
Mortgage Payment Calculator
Calculate your monthly mortgage payment, total interest, and the true cost of your home.
Rental Cash Flow Calculator
Calculate your monthly and annual cash flow from rental properties after expenses.
Rental Yield Calculator
Calculate the rental yield on a property to understand your return on investment.
Property Appreciation Calculator
Estimate how much your property will appreciate over time based on historical rates.
Mortgage Affordability Calculator
Estimate how much home you can afford based on your income, debts, and monthly housing budget.
Rent vs Buy Calculator
Compare the long-term cost of renting versus buying to see which option makes more financial sense.
The Math Behind Real Estate Decisions
Real estate is one of the largest financial commitments most people ever make, and every significant decision — from choosing a mortgage to evaluating a rental property — involves numbers that compound over years or decades. These free calculators help you run those numbers accurately before you sign anything, so you can negotiate from a position of clarity rather than guesswork.
Understanding Your Mortgage
The Mortgage Payment Calculator breaks down your monthly payment into principal and interest, and projects your total interest paid over the full loan term. A $400,000 home with a 7 percent 30-year fixed mortgage costs $2,661 per month and generates over $558,000 in total interest payments — more than the original purchase price. The Mortgage Affordability Calculator works from the other direction: enter your income, monthly debts, and down payment to find the maximum loan amount lenders are likely to approve under standard debt-to-income guidelines.
Evaluating Rental Properties
Investors use cap rate (net operating income divided by property value) and cash-on-cash return (annual cash flow divided by cash invested) to compare properties on equal footing regardless of financing. The Rental Cash Flow Calculator accounts for mortgage payments, property taxes, insurance, maintenance, vacancy allowance, and property management fees to show true monthly profit — not just gross rent minus the mortgage. The Rental Yield Calculator shows the gross and net annual return as a percentage of the purchase price.
Renting vs. Buying: A Long-Term Comparison
The conventional wisdom that buying is always better than renting is not universally true. Purchasing involves closing costs of 2 to 5 percent upfront, property taxes, maintenance averaging 1 to 2 percent of value per year, and the opportunity cost of capital tied up in a down payment. Renting offers flexibility and lower upfront costs, but provides no equity accumulation. The Rent vs Buy Calculator models both scenarios over your expected time horizon to show which option builds more net worth given your specific inputs.
Frequently Asked Questions
How much of a mortgage can I afford?
A common rule of thumb is to keep your total monthly housing costs — principal, interest, taxes, and insurance — below 28 percent of your gross monthly income. Your total debt payments (housing plus car loans, student loans, and other obligations) should stay below 36 to 43 percent. Use the Mortgage Affordability Calculator for a personalized estimate based on your income, debts, and down payment.
What is a good cap rate for a rental property?
Cap rates typically range from 4 to 10 percent depending on location, property type, and market conditions. Properties in high-demand urban areas often have lower cap rates (4 to 6 percent) because prices are elevated relative to rents. Higher cap rates can indicate higher potential returns but may also reflect higher vacancy risk or more management-intensive properties.
Should I rent or buy a home?
The right answer depends on how long you plan to stay, your local market conditions, down payment availability, and personal financial goals. Buying generally becomes advantageous when you plan to stay at least five to seven years, allowing time to build equity and recoup closing costs. Our Rent vs Buy Calculator compares the true long-term cost of each option, including opportunity cost, appreciation, and tax considerations.