Mortgage Calculator: What It Takes To Buy a $430K Home at a 6.69% Rate

The game has finally changed.

Mortgage rates continued their upward climb this week, with the average rate on 30-year fixed home loans rising to 6.69% for the week ending Aug. 6, up 3 basis points from 6.66% the previous week, according to Freddie Mac.

But notably, this marks the first time in 10 months that rates have risen above their year-ago level, when rates averaged 6.63% during the same period in 2025.

So what does this mean for homebuyers? Using the Realtor.com® mortgage calculator, we can look at how the math works out for the median-priced home in the U.S.

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 median house price of $430,000, a 20% down payment results in a loan amount of $344,000.

At today’s 6.69% rate, the monthly principal and interest payment is approximately $2,217. This reflects a $6 monthly increase from the previous week’s payment of $2,211.

Unlike previous updates where current buyers enjoyed year-over-year savings, today’s rate requires $13 more per month compared to the $2,204 payment buyers faced during the same week in 2025.

Monthly mortgage payment today with a 3.5% down payment

The monthly costs have also increased slightly for those using FHA loans with a 3.5% down payment.

On a $430,000 home, an FHA borrower would finance roughly $414,950. At today’s 6.69% rate, the monthly principal and interest payment comes to approximately $2,675.

This reflects an $8 increase from last week’s monthly cost of $2,667. Compared to the 6.63% rates of August 2025, where the monthly payment for this loan amount sat at $2,658, today’s FHA borrowers are paying an extra $17 in interest every month.

However, looking back at the October 2023 peak of 7.79%, where the payment for a home at this price reached $2,984, today’s monthly payment still offers $309 in relief.

Long-term savings over 30 years

The long-term financial picture shows how these persistent rate hikes impact total borrowing costs over time.

A buyer with a 20% down payment at today’s 6.69% rate will pay a total of $798,291 in principal and interest over the life of the mortgage.

While recent rate increases have pushed total costs upward, this sum remains a contrast to the October 2023 peak of 7.79%, when the total cost for that same $344,000 loan would have reached $890,630.

By securing a mortgage at today’s rate instead of that peak, a homebuyer effectively avoids $92,339 in interest charges over the 30-year term.

FHA borrowers see a similar trajectory of long-term figures. Financing the current median-priced home at today’s 6.69% rate results in a lifetime payment of $962,938 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 $1,074,323. This represents a total long-term savings of $111,385 for FHA buyers.

While crossing above last year’s rate baseline highlights a shifting mortgage market, current rates still maintain a measurable discount compared to the historical highs of late 2023.