Mortgage Calculator: Here’s How Much You Need To Buy a $400,000 Home at a 6.46% Rate

Mortgage rates continued their recent upward climb this week, as the average rate on 30-year fixed home loans rose to 6.46% for the week ending April 2, according to Freddie Mac.

This 8-basis-point jump follows the 6.38% recorded the previous week and marks a new seven-month high for borrowing costs. As Sam Khater, Freddie Mac’s chief economist, noted, this uptick arrives just as the spring homebuying season hits its stride, making it more critical than ever for buyers to shop around for the best rates.

Despite this recent surge, current rates remain slightly more favorable than the same period in 2025, when rates averaged 6.64%.

Here’s the monthly cost of purchasing a typical home today, according to the Realtor.com® mortgage calculator.

All examples assume a 30-year fixed mortgage and include principal and interest only, excluding property taxes, homeowners insurance, and mortgage insurance.

Monthly mortgage payment today with a 20% down payment

For a homebuyer eyeing the current median list price of $403,450, these shifting numbers translate into higher monthly costs.

A buyer putting 20% down—financing a loan of $322,760—will now face a monthly principal and interest payment of approximately $2,031.

This reflects a $17 monthly increase from the previous week’s payment of $2,014.

However, compared to the 6.64% average from April 2025, which would have required a $2,070 monthly payment, today’s buyers are still saving $39 every single month.

Monthly mortgage payment today with a 3.5% down payment

The savings are also significant for those utilizing FHA loans with a 3.5% down payment.

On a $403,450 home, an FHA borrower would finance roughly $389,329. At today’s 6.46% rate, the monthly principal and interest payment comes to approximately $2,450.

This is a $21 increase over what the same borrower would have paid just last week.

When viewed against the 6.64% rates of April 2025, where the monthly payment sat at $2,497, today’s FHA borrowers are still saving $47 per month.

Looking back at the October 2023 peak of 7.79%, where the payment for a home at this price would have reached $2,796, the monthly savings remain notable at $346.

Long-term savings over 30 years

The long-term financial benefits of today's rates are still visible when looking at the total cost of the loan over 30 years. A buyer with a 20% down payment at today’s 6.46% rate will pay a total of $731,160 in principal and interest over the life of the mortgage.

While this is significantly higher than the costs seen earlier this year, it remains a contrast to the October 2023 peak of 7.79%, when the total cost for that same loan amount would have reached $834,643. By securing a mortgage in today’s environment instead of that peak, a homebuyer effectively avoids $103,483 in interest charges.

FHA borrowers see a similar trajectory of long-term savings.

Financing the current median-priced home at today's 6.46% rate results in a lifetime payment of $882,000 for principal and interest. If that same loan had been locked in at the 7.79% peak in late 2023, the total cost would have climbed to $1,006,560.

This represents a total long-term savings of $124,560 for FHA buyers. While the climb to a seven-month high has added pressure to the spring market, the current environment still offers a meaningful discount compared to the extreme highs seen in late 2023.