Updated for 2026
IRS Based
Free Calculator
Private & Secure

Mortgage Calculator

Calculate your monthly mortgage payment, total interest, and full amortization schedule. Free mortgage calculator with 2026 US rates — supports 30-year, 15-year, FHA, and jumbo loans.

Calculator

Example monthly payment on a $450,000 home

With a $90,000 down payment, a 30-year fixed loan at 6.75%, $5,400 in annual property tax, and $1,800 in annual insurance, the calculator estimates a $2,935/month PITI payment.

This server-rendered example uses the calculator's stated default inputs. Change the inputs above for a personalized estimate.
Example monthly payment on a $450,000 home
Home price$450,000
Down payment$90,000
Loan amount$360,000
Principal and interest$2,335/month
Property tax and insurance$600/month
Estimated total monthly payment$2,935/month
Estimated total interest over 30 years$480,583

This example mirrors the calculator defaults and excludes PMI, HOA dues, and closing costs.

What You Should Know

  • Your monthly housing payment includes principal, interest, property tax, and homeowners insurance in this estimate.
  • The interest rate and loan term have the largest effect on total interest paid.
  • This estimate does not include PMI, HOA dues, closing costs, or lender-specific fees.

Calculation methodology

How Your Monthly Mortgage Payment Breaks Down

Every fixed-rate mortgage payment is calculated using the same amortization formula — it’s just math the bank runs to figure out what fixed amount pays off the loan exactly at the end of the term.

The formula behind the number

M = P × [r(1+r)^n] / [(1+r)^n − 1]

P = loan amount, r = monthly rate (annual rate ÷ 12), n = total payments (years × 12). Plug in $320,000 at 6.75% for 360 months and you get $2,076. The calculator above does this instantly.

PITI: what your actual monthly payment includes

Principal and interest is just part of it. Most lenders escrow your property taxes and homeowners insurance into the same monthly payment — that’s the “TI” in PITI. If you put less than 20% down, PMI gets folded in too. Budget for the full PITI number, not just P&I.

Why early payments mostly go to interest

Month one on a $320,000 loan at 6.75%: $1,800 goes to interest, $276 goes to principal. By year 15, that’s roughly $1,100 interest and $976 principal. By year 29 it flips completely. This is why making even one extra principal payment per year early in the loan can shave 4–6 years off a 30-year mortgage.

2026 US mortgage market context

The 2026 conforming loan limit is $832,750 (FHFA). The Freddie Mac average 30-year fixed rate was 7.28% in the week of October 1, 2026 (15-year: 6.60%); your quote depends on credit score, down payment and points. FHA loans require just 3.5% down with a 580+ credit score. VA loans offer 0% down for eligible veterans. First-time buyer programs vary by state — many offer down payment assistance grants of $5,000–$25,000.

Frequently Asked Questions

Embed this calculator on your site

Free to use on any website, with the credit link left in place. Copy and paste this code where you want the calculator to appear:

More calculators, open data and citation details: Data and media.

What this example assumes

  • A fixed-rate loan with monthly payments over the selected term.
  • Property tax and homeowners insurance are divided evenly across 12 months.
  • PMI, HOA dues, closing costs, and lender-specific fees are excluded unless separately modeled.

Data sources

These sources support the inputs and assumptions used by this calculator. They are not personalized financial advice.

CalcWyse Editorial Team

Researched, written and checked by the CalcWyse editorial team

Last reviewed September 28, 2026

Figures from IRS, SSA and state sources Assumptions disclosed Browser-only · private