$1,164/mo
Est. monthly payment
At 7% interest over 30 years, a $175,000 mortgage runs about $1,164/month in principal and interest. Once you factor in property taxes and homeowners insurance, the realistic monthly total lands between $1,400 and $1,650. This assumes 0% down; putting 20% down ($35,000) cuts the payment to $931/month and removes PMI.
Adjust the numbers below to match your situation:
Open Mortgage Calculator →On a $175,000 loan over 30 years, each percentage point adds about $115/month to your payment and tens of thousands in lifetime interest.
| Interest Rate | Monthly P&I | Total Interest (30yr) |
|---|---|---|
| 5.0% | $939 | $163,185 |
| 6.0% | $1,049 | $202,748 |
| 6.5% | $1,106 | $223,226 |
| 7.0% | $1,164 | $244,139 |
| 7.5% | $1,224 | $265,497 |
| 8.0% | $1,284 | $287,169 |
More upfront cash means a smaller loan and lower monthly cost. Cross the 20% threshold and PMI disappears entirely ($75–$150/month on a $175K home).
| Down Payment | Loan Amount | Monthly P&I | Monthly Savings |
|---|---|---|---|
| 0% ($0) | $175,000 | $1,164 | — |
| 3.5% ($6,125) | $168,875 | $1,123 | $41 |
| 5% ($8,750) | $166,250 | $1,106 | $58 |
| 10% ($17,500) | $157,500 | $1,048 | $116 |
| 20% ($35,000) | $140,000 | $931 | $233 + no PMI |
| Loan Term | Monthly P&I | Total Interest | Total Paid |
|---|---|---|---|
| 30 years | $1,164 | $244,139 | $419,139 |
| 15 years | $1,573 | $108,150 | $283,150 |
Going with 15 years means $409/month more out of pocket, but you save $135,989 in interest over the life of the loan.
Principal and interest is only one piece. Here's what the full monthly picture looks like at 7%:
PMI adds $75–$150/month if your down payment is under 20%. HOA fees push it higher where applicable. Use the mortgage calculator for a complete estimate.
At 7% over 30 years, expect about $1,164/month for principal and interest. Add taxes and insurance and budget $1,400–$1,650/month total.
The 28% DTI guideline suggests at least $50,000–$56,000/year gross. Lower debts may allow slightly less.
Putting $35,000 down leaves a $140,000 loan. At 7% over 30 years that's $931/month P&I — and you skip PMI entirely.
Roughly $115/month per percentage point. At 5%: $939. At 7%: $1,164. At 8%: $1,284. Over 30 years, each extra percent costs $40,000+ in added interest.
At 7% for 30 years: approximately $244,139. Total repayment: $419,139. A 15-year term cuts interest to ~$108,150.
15-year: $1,573/month, $108,150 total interest. 30-year: $1,164/month, $244,139 total interest. You save $135,989 with the shorter term but pay $409 more per month. Compare both.