The short answer: at a 6.5% rate, a $500,000 30-year fixed mortgage costs $3,160.34 a month in principal and interest; at 7%, $3,326.51. On a 15-year term at 6.5% the payment is $4,355.54. 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% | $2,684.11 | $3,299.78 | $3,953.97 |
| 5.25% | $2,761.02 | $3,369.22 | $4,019.39 |
| 5.50% | $2,838.95 | $3,439.44 | $4,085.42 |
| 5.75% | $2,917.86 | $3,510.42 | $4,152.05 |
| 6.00% | $2,997.75 | $3,582.16 | $4,219.28 |
| 6.25% | $3,078.59 | $3,654.64 | $4,287.11 |
| 6.50% | $3,160.34 | $3,727.87 | $4,355.54 |
| 6.75% | $3,242.99 | $3,801.82 | $4,424.55 |
| 7.00% | $3,326.51 | $3,876.49 | $4,494.14 |
| 7.25% | $3,410.88 | $3,951.88 | $4,564.31 |
| 7.50% | $3,496.07 | $4,027.97 | $4,635.06 |
At 6.5%, interest alone on $500,000 runs about $2,708.33 per month — roughly $89.04 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 $500,000 loan buys about $625,000 of house; with 5% down, about $526,316. Enter your own down payment in the payment calculator and the price, loan and LTV solve automatically.