The table below gives principal and interest on a 30-year fixed mortgage with 20% down, across the price and rate combinations people actually search for. Read the section under it before you budget against these numbers, because they are not your monthly housing cost.
Open the mortgage calculator →| House price | Rate | Loan amount | Monthly P&I | Total interest |
|---|---|---|---|---|
| $100,000 | 6.5% | $80,000 | $506 | $102,036 |
| $100,000 | 7% | $80,000 | $532 | $111,607 |
| $150,000 | 6.5% | $120,000 | $758 | $153,053 |
| $150,000 | 7% | $120,000 | $798 | $167,411 |
| $200,000 | 6.5% | $160,000 | $1,011 | $204,071 |
| $200,000 | 7% | $160,000 | $1,064 | $223,214 |
| $250,000 | 6.5% | $200,000 | $1,264 | $255,089 |
| $250,000 | 7% | $200,000 | $1,331 | $279,018 |
| $300,000 | 6.5% | $240,000 | $1,517 | $306,107 |
| $300,000 | 7% | $240,000 | $1,597 | $334,821 |
| $350,000 | 6.5% | $280,000 | $1,770 | $357,125 |
| $350,000 | 7% | $280,000 | $1,863 | $390,625 |
| $400,000 | 6.5% | $320,000 | $2,023 | $408,142 |
| $400,000 | 7% | $320,000 | $2,129 | $446,428 |
| $450,000 | 6.5% | $360,000 | $2,275 | $459,160 |
| $450,000 | 7% | $360,000 | $2,395 | $502,232 |
| $500,000 | 6.5% | $400,000 | $2,528 | $510,178 |
| $500,000 | 7% | $400,000 | $2,661 | $558,036 |
| $550,000 | 6.5% | $440,000 | $2,781 | $561,196 |
| $550,000 | 7% | $440,000 | $2,927 | $613,839 |
| $600,000 | 6.5% | $480,000 | $3,034 | $612,214 |
| $600,000 | 7% | $480,000 | $3,193 | $669,643 |
| $700,000 | 6.5% | $560,000 | $3,540 | $714,249 |
| $700,000 | 7% | $560,000 | $3,726 | $781,250 |
| $800,000 | 6.5% | $640,000 | $4,045 | $816,285 |
| $800,000 | 7% | $640,000 | $4,258 | $892,857 |
| $900,000 | 6.5% | $720,000 | $4,551 | $918,320 |
| $900,000 | 7% | $720,000 | $4,790 | $1,004,464 |
| $1,000,000 | 6.5% | $800,000 | $5,057 | $1,020,356 |
| $1,000,000 | 7% | $800,000 | $5,322 | $1,116,071 |
Your actual monthly payment includes property tax, homeowners insurance, and — below 20% down — private mortgage insurance. Escrowed together, these commonly add 25–40% on top of the figures below. A $1,500 principal-and-interest payment is realistically $1,900–2,100 out of your account.
Property tax is the biggest variable and it is regional: roughly 0.3% of value a year in Hawaii against over 2% in New Jersey. On a $400,000 house that is a difference of about $560 a month, which dwarfs the difference between the rate columns below.
Comparing the rate columns for the same price is the useful exercise. Roughly, each additional percentage point adds about 8–9% to the monthly payment for a 30-year term. Over the life of the loan the effect is far larger, because it compounds against the whole balance — the total-interest column shows this plainly, and it is usually the number that surprises people.
This is also why paying points can be worth it and why refinancing gets attention when rates move. The break-even on points is normally three to five years; if you expect to move sooner, the upfront cost does not come back.
Every row assumes 20% down, which is what removes PMI. With less down you borrow more and add mortgage insurance — typically 0.5–1.5% of the loan a year until you reach 20% equity. The loan-amount column shows what is actually being financed, so if your deposit differs you can read across to the nearer price row instead.
The lifetime-interest column frequently exceeds half the purchase price and sometimes approaches it. That is the cost of borrowing, and it is the strongest argument for even modest overpayments: because interest accrues on the outstanding balance, money paid early removes interest for every remaining month. An extra $100 a month on a typical 30-year loan usually cuts four to five years off the term.
No. These are principal-and-interest figures. Property tax, homeowners insurance and PMI typically add 25–40% on top.
30-year fixed with 20% down. A 15-year term raises the monthly payment substantially but cuts lifetime interest by well over half.
Roughly 8–9% on the monthly payment, and far more over the full term — compare the total-interest column across two rate rows at the same price.
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