Mortgage Calculator: $300,000 Home Loan
Break down your monthly payment on a $300,000 mortgage. Compare loan terms, see how interest adds up, and find the right balance between home size and affordability.
Calculate Your $300K Mortgage Payment
The Median-Price Mortgage: What $300K Buys You
A $300,000 mortgage is close to the national median, making it one of the most common loan amounts in the country. At a 6.5% fixed rate over 30 years, the monthly principal and interest payment is approximately $1,896. Over the full term, total interest costs add up to roughly $382,633, meaning you would pay about $682,633 in total for your $300,000 loan.
At this price point, you are typically looking at single-family homes in suburban areas, townhouses in competitive metro markets, or larger properties in lower-cost regions. Balancing home size with affordability is the key challenge. A larger home may feel appealing now, but a mortgage that stretches your budget leaves little room for savings, maintenance, or unexpected expenses.
15-Year vs 20-Year vs 30-Year: $300K at 6.5%
Choosing a shorter loan term increases your monthly payment but dramatically reduces total interest. The table below compares three popular terms for a $300,000 mortgage at 6.5%.
| Loan Term | Monthly Payment | Total Payment | Total Interest | Interest Saved vs 30yr |
|---|
Switching from a 30-year to a 15-year term saves over $223,000 in interest on a $300,000 loan. Even moving to a 20-year term saves more than $130,000. The trade-off is a noticeably higher monthly payment, so choose the term that fits within your budget while maximizing long-term savings.
Balancing Home Size and Affordability
When shopping for a home in the $300,000 mortgage range, it is tempting to maximize your borrowing power. However, financial experts recommend keeping your total housing costs, including taxes and insurance, below 28% of your gross monthly income. For a $1,896 monthly payment (principal and interest only), that implies a minimum gross annual income of roughly $81,000.
Consider these strategies to keep your $300K mortgage manageable:
- Put down 20% or more to avoid PMI and reduce your loan balance.
- Compare lenders aggressively — even a 0.25% rate difference saves tens of thousands over the loan.
- Factor in all costs — property taxes, insurance, HOA fees, and maintenance can add 30% to 50% on top of your principal and interest payment.
- Leave room in your budget for retirement savings, emergency funds, and home repairs.
Frequently Asked Questions
What's the monthly payment on a $300K mortgage?
At a 6.5% fixed interest rate over 30 years, the monthly principal and interest payment on a $300,000 mortgage is approximately $1,896. With a 15-year term at the same rate, the monthly payment rises to about $2,613. Your actual payment will also include property taxes and insurance, which vary by location.
How much do you need to make for a $300K loan?
To comfortably afford a $300,000 mortgage, most lenders and financial advisors recommend a gross annual income of $80,000 to $100,000, depending on your interest rate, other debts, and local tax and insurance costs. The standard guideline is that housing costs should not exceed 28% of gross income, and total debt payments should stay below 36% to 43%.
Is 20% down worth it at $300K?
Putting 20% down on a $375,000 home ($75,000 down payment) to reach a $300,000 mortgage has two major benefits: you eliminate private mortgage insurance (PMI), which typically costs 0.5% to 1% of the loan annually, and you start with more equity. On a $300K loan, avoiding PMI alone can save you $1,500 to $3,000 per year. However, if saving $75,000 would deplete your emergency fund or delay homeownership significantly, a smaller down payment with PMI may still be a sound choice.
Explore More Mortgage Scenarios
Use our main Mortgage Payment Calculator to enter any custom loan amount. You can also explore specific loan amounts:
- $200,000 Mortgage Calculator — for budget-friendly homes
- $400,000 Mortgage Calculator — for higher-value properties
Compare Mortgage Rates
Even a small difference in interest rates can save you thousands over the life of your loan. Before committing to a mortgage, consider comparing offers from multiple lenders to find the best rate and terms for your financial situation.
What to Look For When Comparing Mortgage Rates
Even a 0.25% difference in your mortgage rate changes your total interest paid by tens of thousands of dollars over a 30-year term. When evaluating lenders, consider these factors alongside the headline rate:
- APR vs. interest rate — the APR includes origination fees and gives a more accurate total-cost comparison across lenders
- Points — paying discount points upfront lowers your rate but extends the break-even period; worthwhile only if you stay in the home long enough
- Fixed vs. adjustable — ARMs start lower but carry rate-reset risk after the initial period; fixed rates offer long-term payment certainty
- Lender type — banks, credit unions, and online lenders each offer different rate structures, underwriting timelines, and service models
- Rate lock period — confirm how long the quoted rate is guaranteed during the underwriting process before you are committed