$100,000 Mortgage Payment
Monthly principal & interest by interest rate and loan term.
A $100,000 mortgage at 6.50% over 30 years costs about $632 a month in principal and interest, and $127,545 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
- $632 a month on a 30-year term, with $127,545 of interest paid in total.
- $746 a month on a 20-year term, with $78,937 of interest paid in total.
- $871 a month on a 15-year term, with $56,800 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% | $537 | $660 | $791 |
| 5.5% | $568 | $688 | $817 |
| 6% | $600 | $716 | $844 |
| 6.5% | $632 | $746 | $871 |
| 7% | $665 | $775 | $899 |
| 7.5% | $699 | $806 | $927 |
| 8% | $734 | $836 | $956 |
Principal & interest only. Property tax, insurance, PMI and HOA are extra.
At 6.5% over 30 Years
| Loan Amount | $100,000 |
|---|---|
| Monthly Principal & Interest | $632 |
| Total Interest (30 yr) | $127,545 |
| Total of Payments | $227,545 |
First-Year Amortization (6.5%, 30 yr)
| Month | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $90 | $542 | $99,910 |
| 2 | $91 | $541 | $99,819 |
| 3 | $91 | $541 | $99,727 |
| 4 | $92 | $540 | $99,635 |
| 5 | $92 | $540 | $99,543 |
| 6 | $93 | $539 | $99,450 |
| 7 | $93 | $539 | $99,357 |
| 8 | $94 | $538 | $99,263 |
| 9 | $94 | $538 | $99,169 |
| 10 | $95 | $537 | $99,074 |
| 11 | $95 | $537 | $98,978 |
| 12 | $96 | $536 | $98,882 |
Early payments are mostly interest; principal builds over time.
Last reviewed: October 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.