Calculator / Calculators

Mortgage Calculators

Free tools for every part of a home loan: affordability, refinancing, early payoff, loan comparison, DTI, and closing costs. All estimates, all editable.

Calculators by loan type

Each loan program prices differently. These run the same payment math with the rules, fees, and mortgage insurance that apply to that specific program.

Which calculator to use, and when

The tools above overlap on purpose, because the right one depends on the question in front of you. Use this order and you will not waste time.

How these calculators work

Every tool on this site runs the standard amortization formula for principal and interest, then layers on the costs that a rate quote leaves out: property taxes, homeowners insurance, HOA dues, and the mortgage insurance that applies to the specific program you selected. Program rules are built in rather than bolted on, so an FHA estimate includes the 1.75% up-front premium financed into the loan and the annual MIP, a VA estimate includes the funding fee at the correct tier, and a conventional estimate drops PMI at roughly 78% loan-to-value instead of carrying it forever.

Defaults are typical national figures, not quotes. Property tax and insurance in particular swing widely by state and county, so replace those two inputs with real numbers from a listing or an insurance quote as soon as you have them. Everything is editable and nothing is stored. The numbers you type stay in your browser.

Reading the output honestly

• Compare total cost over five years, not the monthly payment. The cheapest monthly payment frequently carries the highest lifetime cost once mortgage insurance and up-front fees are counted.
• Treat the rate field as an assumption. Rates change daily and are adjusted for your credit, down payment, and occupancy. Today's national averages are a starting point, not your rate.
• Add a buffer to cash to close. Prepaid taxes, insurance escrows, and per-diem interest push the real number above the closing cost estimate on most files.
• Check the ratio, not only the payment. A payment you afford on paper still fails underwriting if total debt-to-income lands above program limits.

These are educational estimates. A licensed mortgage loan originator confirms eligibility, pricing, and final costs for your situation.

Guides that go with the numbers

A payment figure is only useful once you know what drives it. These explain the inputs the calculators ask for.