A $600,000 fixed-rate mortgage at 5.75% APR paid over 20 years costs $4,212.50 per month. Over the life of the loan you would pay $411,000 in interest — 69% of the amount borrowed.
The 5.75% rate on this page is 0.68 points below this week's national average of 6.43% for a 30-year fixed mortgage (Freddie Mac PMMS, July 2, 2026).
| Period | Principal paid | Interest paid | Balance |
|---|
| Scenario | Monthly | Total interest |
|---|---|---|
| $600,000 at 4% (20yr) | $3,635.88 | $272,612 |
| $600,000 at 4.25% (20yr) | $3,715.41 | $291,698 |
| $600,000 at 4.5% (20yr) | $3,795.90 | $311,015 |
| $600,000 at 4.75% (20yr) | $3,877.34 | $330,562 |
| $600,000 at 5% (20yr) | $3,959.73 | $350,336 |
| $600,000 at 5.25% (20yr) | $4,043.06 | $370,336 |
| $600,000 at 5.5% (20yr) | $4,127.32 | $390,558 |
| $600,000 at 5.75% (20yr) ← this page | $4,212.50 | $411,000 |
| $600,000 at 6% (20yr) | $4,298.59 | $431,661 |
| $600,000 at 6.25% (20yr) | $4,385.57 | $452,537 |
| $600,000 at 6.5% (20yr) | $4,473.44 | $473,625 |
| $600,000 at 6.75% (20yr) | $4,562.18 | $494,924 |
| $600,000 at 7% (20yr) | $4,651.79 | $516,430 |
| $600,000 at 7.25% (20yr) | $4,742.26 | $538,141 |
| $600,000 at 7.5% (20yr) | $4,833.56 | $560,054 |
| $600,000 at 7.75% (20yr) | $4,925.69 | $582,166 |
| $600,000 at 8% (20yr) | $5,018.64 | $604,474 |
| $600,000 at 8.5% (20yr) | $5,206.94 | $649,665 |
| $600,000 at 9% (20yr) | $5,398.36 | $695,605 |