$320,000 Mortgage Payment
Monthly principal & interest by interest rate and loan term.
A $320,000 mortgage at 6.50% over 30 years costs about $2,023 a month in principal and interest, and $408,143 in interest over the life of the loan.
Early payments are mostly interest: in the first year only a small slice of each instalment reduces the balance. That is why a shorter term saves so much — the rate is similar, but the interest has far less time to compound.
Choosing a term
- $2,023 a month on a 30-year term, with $408,143 of interest paid in total.
- $2,386 a month on a 20-year term, with $252,599 of interest paid in total.
- $2,788 a month on a 15-year term, with $181,757 of interest paid in total.
- Property tax, homeowners insurance, PMI and HOA dues are not included — a common reason a real payment lands 20-30% above the figure shown here.
Monthly Payment by Rate & Term
| Interest Rate | 30 years | 20 years | 15 years |
|---|---|---|---|
| 5% | $1,718 | $2,112 | $2,531 |
| 5.5% | $1,817 | $2,201 | $2,615 |
| 6% | $1,919 | $2,293 | $2,700 |
| 6.5% | $2,023 | $2,386 | $2,788 |
| 7% | $2,129 | $2,481 | $2,876 |
| 7.5% | $2,237 | $2,578 | $2,966 |
| 8% | $2,348 | $2,677 | $3,058 |
Principal & interest only. Property tax, insurance, PMI and HOA are extra.
At 6.5% over 30 Years
| Loan Amount | $320,000 |
|---|---|
| Monthly Principal & Interest | $2,023 |
| Total Interest (30 yr) | $408,143 |
| Total of Payments | $728,143 |
First-Year Amortization (6.5%, 30 yr)
| Month | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $289 | $1,733 | $319,711 |
| 2 | $291 | $1,732 | $319,420 |
| 3 | $292 | $1,730 | $319,127 |
| 4 | $294 | $1,729 | $318,833 |
| 5 | $296 | $1,727 | $318,538 |
| 6 | $297 | $1,725 | $318,241 |
| 7 | $299 | $1,724 | $317,942 |
| 8 | $300 | $1,722 | $317,641 |
| 9 | $302 | $1,721 | $317,339 |
| 10 | $304 | $1,719 | $317,036 |
| 11 | $305 | $1,717 | $316,730 |
| 12 | $307 | $1,716 | $316,423 |
Early payments are mostly interest; principal builds over time.
Last reviewed: November 2026
Data sources: Standard mortgage amortization formula; Principal & interest only — excludes taxes, insurance, PMI, HOA.
Disclaimer: Payment estimates are for principal and interest at the rates shown. Your actual payment depends on your rate, taxes, insurance and fees. Not financial advice.