A mortgage's headline interest rate only tells part of the monthly cost story — property tax and homeowner's insurance typically get bundled into the same monthly payment, and this calculator accounts for all of it.
Enter the home price and down payment to determine your loan amount, then the interest rate and term to calculate the principal-and-interest portion, and finally your estimated annual tax and insurance to see the full, realistic monthly total.
This gives a more accurate picture than a bare principal-and-interest number alone, which is useful when comparing what you can actually afford versus just the advertised loan payment.
Because everything runs locally in your browser, results appear instantly and nothing you type or upload is ever sent to a server.
Bookmark this page if you expect to use this tool regularly — it loads fast and behaves the same way every time, with no account needed.
This kind of task shows up constantly in everyday writing, coding, design, and admin work, which is exactly why a dedicated, focused tool saves so much back-and-forth.
A tool that does one job well, without a cluttered interface or unrelated features competing for attention, tends to be faster to use than a heavier all-in-one app.
If you find yourself needing this conversion or calculation often, keeping this page open in a tab is usually faster than digging through a bigger software suite's menus.
Frequently asked questions
Does this include private mortgage insurance (PMI)?
No, this calculates principal, interest, taxes, and homeowner's insurance; PMI (required on many loans with less than 20% down) would need to be added separately if applicable to your situation.
How is the loan amount determined?
It's simply the home price minus your down payment — the remaining balance that gets financed through the mortgage.