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 result
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.
| 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.
Key Takeaways
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.
How it works
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.
Questions
Frequently Asked Questions
Assumptions
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.
Sources
Data sources
These sources support the inputs and assumptions used by this calculator. They are not personalized financial advice.
- CFPB: Mortgage basics
Consumer guidance on mortgage costs, qualification, and loan shopping.
- FHFA conforming loan limits
Annual loan-limit data relevant to conforming mortgage scenarios.
- Federal Reserve mortgage market data
Historical 30-year fixed mortgage-rate series for market context, not a quoted rate.