Mortgage Calculator – Monthly Payment & Amortization
Estimate your monthly mortgage payment, total interest, and full amortization schedule — free, instant, no signup.
Tool Interface
Estimate your monthly mortgage payment, see exactly where the money goes, and browse the full amortization schedule — principal vs. interest, year by year. Free, instant, no signup.
| Year | Principal paid | Interest paid | Balance |
|---|
How to use
- Enter the home price and down payment — the loan amount is calculated automatically.
- Set the interest rate and loan term (30, 20, 15, or 10 years).
- Optionally add yearly property tax, yearly home insurance, monthly HOA dues, and an extra monthly principal payment.
- Read the results — monthly payment with a full breakdown, totals, and the year-by-year amortization schedule.
- Monthly principal & interest uses the standard amortization formula with monthly compounding.
- An extra monthly payment goes entirely to principal and can cut years off the loan — watch the payoff line.
- This is an estimate for planning, not a loan offer — taxes, insurance, and rates vary by location and lender.
Estimate only — not a loan offer or financial advice. Actual payments depend on your lender, taxes, insurance, and fees.
100% private — all calculations happen in your browser, nothing is uploaded.
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About This Tool
Introduction
Buying a home or refinancing? Trencada's Mortgage Calculator estimates your monthly mortgage payment before you talk to a lender. Enter the home price, down payment, interest rate, and loan term — then optionally add property tax, home insurance, HOA dues, and an extra monthly principal payment to see the true cost of the loan, plus a full year-by-year amortization schedule.
How to Use the Mortgage Calculator (Step-by-Step)
- Enter the home price and down payment. The loan amount is calculated automatically, and a hint shows your down payment as a percentage of the home price.
- Set the annual interest rate and loan term. Choose 30, 20, 15, or 10 years from the dropdown.
- Optionally add extra monthly costs. Enter yearly property tax, yearly home insurance, monthly HOA dues, and any extra monthly payment you plan to put toward principal (it shortens the loan).
- Read the results. Everything recalculates instantly as you type: the estimated total monthly payment with a full breakdown (principal & interest, tax, insurance, HOA, extra payment), loan amount, total interest, total of payments, and the payoff timeline.
- Browse the amortization schedule. The yearly table shows principal paid, interest paid, and the remaining balance for every year of the loan.
Key Features
- Full monthly payment breakdown: principal & interest, property tax, home insurance, HOA dues, and extra principal payment — the complete PITI picture.
- Yearly amortization schedule: principal paid, interest paid, and running balance for every year.
- Total interest and total cost: see the loan amount, total interest, and total of payments up front.
- Extra-payment modeling: add an extra monthly payment to see how it shortens the payoff time.
- Instant recalculation: results update as you type — no submit button needed.
- Private by design: 100% client-side — all calculations happen in your browser; nothing is uploaded or stored.
- No signup: free forever, on phone, tablet, and desktop.
Why Choose Trencada
Trencada's calculators are fast, free, and private. This mortgage calculator uses the standard amortization formula with monthly compounding, needs no account, and keeps your financial figures entirely on your device. Budgeting further? Estimate your taxes with our income tax calculator, or run quick percentage math with the percentage calculator.
FAQs
1. What makes up the monthly payment?
Principal and interest plus property tax, home insurance, HOA dues, and any extra principal payment you add — the full breakdown the tool displays.
2. How is the interest calculated?
With the standard amortization formula and monthly compounding.
3. Does an extra monthly payment help?
Yes — it goes entirely to principal and can cut years off the loan. The payoff line shows your new timeline.
4. Is it really free?
Yes — all Trencada tools are free with no signup.
5. Does it show an amortization schedule?
Yes. A yearly table lists principal paid, interest paid, and the remaining balance for every year of the loan.
6. Is my financial data uploaded anywhere?
No. The calculator runs 100% in your browser — your figures are never sent to any server or stored.
Estimate only — not a loan offer or financial advice. Actual payments depend on your lender, taxes, insurance, and location.