The short answer: at a 6.5% rate, a $150,000 30-year fixed mortgage costs $948.10 a month in principal and interest; at 7%, $997.95. On a 15-year term at 6.5% the payment is $1,306.66. Taxes, insurance, HOA and mortgage insurance (if you put less than 20% down) come on top — open this loan in the full calculator to add them and see the complete amortization schedule.
| Rate | 30-year | 20-year | 15-year |
|---|---|---|---|
| 5.00% | $805.23 | $989.93 | $1,186.19 |
| 5.25% | $828.31 | $1,010.77 | $1,205.82 |
| 5.50% | $851.68 | $1,031.83 | $1,225.63 |
| 5.75% | $875.36 | $1,053.13 | $1,245.62 |
| 6.00% | $899.33 | $1,074.65 | $1,265.79 |
| 6.25% | $923.58 | $1,096.39 | $1,286.13 |
| 6.50% | $948.10 | $1,118.36 | $1,306.66 |
| 6.75% | $972.90 | $1,140.55 | $1,327.36 |
| 7.00% | $997.95 | $1,162.95 | $1,348.24 |
| 7.25% | $1,023.26 | $1,185.56 | $1,369.29 |
| 7.50% | $1,048.82 | $1,208.39 | $1,390.52 |
At 6.5%, interest alone on $150,000 runs about $812.50 per month — roughly $26.71 every day. That's the number amortization slowly kills: each payment shrinks the balance, so each month a little less goes to interest and a little more to principal. See the month-by-month schedule, or try our daily interest calculator for per-diem closing math.
Principal and interest is the floor, not the payment. A realistic budget adds property taxes, homeowners insurance, HOA dues, and — under 20% down — mortgage insurance, which our full calculator prices the way a lender does: FHA and USDA from the official tables, VA's funding fee, and conventional PMI by credit score.
A common guideline caps total housing costs near 28–36% of gross income, but real qualifying depends on your full debt picture, credit and loan program. Build the complete payment in the calculator, then ask a licensed professional — Phil answers questions free.
With 20% down, a $150,000 loan buys about $187,500 of house; with 5% down, about $157,895. Enter your own down payment in the payment calculator and the price, loan and LTV solve automatically.