Local mortgage analysis
Run a full mortgage analysis locally without uploading data
Mortgage math is personal. The loan and mortgage calculator runs entirely in your browser, so your price, income, and rate assumptions never reach a server.
Analyze a mortgage locally
Four inputs and a few scenarios give you a defensible monthly number.
Open the calculator
Open the loan and mortgage calculator in your browser.
Enter loan basics
Add the loan amount or price with down payment, the annual rate, and the term.
Add tax and insurance
Enter annual property tax and insurance to see the true monthly cost.
Test extra payments
Try a modest extra monthly amount and compare total interest and payoff time.
Levels of mortgage analysis
Choose the depth that matches your planning stage.
Quick payment estimate
The mortgage calculator gives the core principal and interest figure in seconds.
Best for initial screeningFull monthly picture
The loan and mortgage calculator adds property tax and insurance to the monthly total.
Best for budget planningExtra payment modeling
Adding extra monthly payments shows how much interest you skip and how early the loan ends.
Best for payoff strategiesThe true monthly cost
Principal and interest are only part of homeownership. Property tax, homeowners insurance, and sometimes mortgage insurance are paid monthly, often through escrow. A payment quote that excludes them understates your real cash flow by hundreds of dollars a month in some areas.
The loan and mortgage calculator folds annual tax and insurance into the monthly total, so the number you plan with matches the number on your bank statement.
The power of extra payments
An extra 100 dollars per month on a 300,000, 30-year loan at 6.5 percent can shave years off the term and tens of thousands of dollars in interest. The calculator shows both effects, which turns a vague habit into a deliberate strategy.
Jump to tool
Analyze your mortgage privately now
Open the loan and mortgage calculator, enter your numbers, and see the full monthly picture without uploading anything.
Open Loan and Mortgage CalculatorProblems with online mortgage tools
- Many calculators upload your financial details to advertising profiles
- Pre-filled rates are teasers, not offers
- Results without tax and insurance mislead budgeting
- Saving scenarios often requires an account and email signup
Local analysis practices
- Use your real local tax rate, not a national average
- Include insurance and HOA fees in the monthly total
- Test rates 0.25 percent above and below the quote
- Re-run the analysis when rates or your down payment change
Frequently asked questions
Why does my monthly cost include tax and insurance?
Lenders typically collect property tax and insurance monthly into an escrow account and pay them yearly. Including them gives a cash-accurate monthly figure instead of a partial one.
How do extra payments reduce total interest?
Extra payments reduce the principal balance directly, so less interest accrues on each following month. The calculator shows the new payoff date and the total interest saved.
Can I compare a 15-year and 30-year loan here?
Yes. Change the term and read the new payment and total interest. The comparison makes the long-term cost difference between terms visible in seconds.
Is my data truly private?
Yes. Every calculation runs in your browser with no network request carrying your inputs. Nothing is stored, and no account is needed to save or revisit scenarios.
Zero-upload mortgage analysis
The loan and mortgage calculator processes everything locally in your browser. Your financial inputs are not uploaded, stored, or shared with any server.
Open Loan and Mortgage Calculator