A $250,000 fixed-rate mortgage at 4.5% APR paid over 20 years costs $1,581.62 per month. Over the life of the loan you would pay $129,590 in interest — 52% of the amount borrowed.
The 4.5% rate on this page is 1.93 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 |
|---|---|---|
| $250,000 at 4% (20yr) | $1,514.95 | $113,588 |
| $250,000 at 4.25% (20yr) | $1,548.09 | $121,541 |
| $250,000 at 4.5% (20yr) ← this page | $1,581.62 | $129,590 |
| $250,000 at 4.75% (20yr) | $1,615.56 | $137,734 |
| $250,000 at 5% (20yr) | $1,649.89 | $145,973 |
| $250,000 at 5.25% (20yr) | $1,684.61 | $154,306 |
| $250,000 at 5.5% (20yr) | $1,719.72 | $162,732 |
| $250,000 at 5.75% (20yr) | $1,755.21 | $171,250 |
| $250,000 at 6% (20yr) | $1,791.08 | $179,859 |
| $250,000 at 6.25% (20yr) | $1,827.32 | $188,557 |
| $250,000 at 6.5% (20yr) | $1,863.93 | $197,344 |
| $250,000 at 6.75% (20yr) | $1,900.91 | $206,218 |
| $250,000 at 7% (20yr) | $1,938.25 | $215,179 |
| $250,000 at 7.25% (20yr) | $1,975.94 | $224,226 |
| $250,000 at 7.5% (20yr) | $2,013.98 | $233,356 |
| $250,000 at 7.75% (20yr) | $2,052.37 | $242,569 |
| $250,000 at 8% (20yr) | $2,091.10 | $251,864 |
| $250,000 at 8.5% (20yr) | $2,169.56 | $270,694 |
| $250,000 at 9% (20yr) | $2,249.31 | $289,836 |