$1,847/mo
Principal & Interest
A $300,000 mortgage at 6.25% interest over 30 years costs approximately $1,847 per month in principal and interest. This reflects the full $300,000 financed — consistent with a $375,000 purchase at 20% down or a $300,000 home with no down payment.
Property taxes and homeowner's insurance typically add $300–$600/month on top of that, bringing total estimated housing costs to $2,147–$2,447/month.
Calculate Your Exact Payment →The $1,847 figure assumes a $300,000 loan at exactly 6.25% for 30 years. Your purchase price, down payment, and actual rate will all affect the result. Use the Mortgage Calculator to see your specific payment in real time.
At 6.25%, you repay roughly $2.22 for every $1 borrowed. Your first monthly payment is approximately $1,563 in interest and $284 in principal — only about 15% of the initial payment goes toward the loan balance itself. The rest is the cost of borrowing at this rate.
In the 6–7% range, even small rate differences carry real cost. Here's how a $300,000 loan plays out from 5% to 7.5%:
| Interest Rate | Monthly P&I | Total Interest (30yr) | vs. 6.25% |
|---|---|---|---|
| 5.0% | $1,610 | $279,767 | −$237/mo |
| 5.5% | $1,703 | $313,080 | −$144/mo |
| 6.0% | $1,799 | $347,515 | −$48/mo |
| 6.25% | $1,847 | $364,920 | — |
| 6.5% | $1,896 | $382,560 | +$49/mo |
| 6.75% | $1,946 | $400,560 | +$99/mo |
| 7.0% | $1,996 | $418,527 | +$149/mo |
| 7.5% | $2,098 | $455,280 | +$251/mo |
Securing 6.25% instead of 6.75% saves $99/month — or nearly $35,640 in total interest over 30 years. If you're negotiating points or deciding when to lock, that half-point has a clear dollar value.
See how 6.25% translates to different loan sizes. Each page includes a full rate table, down payment scenarios, and 15yr vs. 30yr comparisons.
Browse all 37 price points on the Mortgage & Real Estate hub.
At 6.25% over 30 years, a $300,000 mortgage costs approximately $1,847/month in principal and interest. With property taxes and homeowner's insurance, total monthly housing costs are typically $2,147–$2,447, depending on your location and coverage.
On a $300,000 loan at 6.25%, total interest over 30 years is approximately $364,920 — meaning your total repayment is $664,920. The interest alone exceeds the original loan amount, which is the reality of borrowing at rates in this range over a full 30-year term.
In the 2025–2026 market, 6.25% is on the lower end of available 30-year fixed rates — competitive but not exceptional. It sits just above the long-run historical average of 5.5–6%, meaning it's broadly in line with what most borrowers would consider "normal." If you can secure 6.25% today, it's a reasonable rate to lock. Use the affordability calculator to confirm the payment fits your budget.
Dropping from 6.25% to 5.25% on a $300K loan would reduce the monthly payment from $1,847 to approximately $1,657 — saving roughly $190/month and about $68,000 in total interest over 30 years. Whether it's worth paying discount points to achieve that depends on how long you plan to stay in the home. The mortgage calculator can help model that scenario.