Rate Change & Buying Power Calculator
See how much more or less home a rate change lets you afford on the same monthly budget, with a table of buying power at nearby rates.
Hold your monthly budget fixed and see how the price you can afford moves with the rate.
| Rate | Maximum loan | Maximum price | vs current rate |
|---|---|---|---|
| 6.000% | $450,337 | $562,922 | +$44,507 loan |
| 6.500% | $427,169 | $533,962 | +$21,339 loan |
| 6.750% | $416,282 | $520,353 | +$10,452 loan |
| 7.250% | $395,792 | $494,740 | -$10,038 loan |
| 7.500% | $386,148 | $482,684 | -$19,683 loan |
| 8.000% | $367,965 | $459,957 | -$37,865 loan |
| 9.000% | $335,561 | $419,451 | -$70,269 loan |
This uses your budget as the only limit. Lenders also look at income, debts, credit and reserves, so your approved amount can be lower. Estimates only.
How it works
Budget minus taxes, insurance and HOA gives the principal-and-interest payment you can carry. The calculator finds the loan whose payment equals it at each rate, then divides by (1 − down payment %) to get a price. It is the standard payment formula run backward.
If you are weighing a purchase now against waiting, read buy now, refinance later and test your own lock-or-float decision with the rate lock calculator. For the rest of your budget use the mortgage affordability calculator.
Sources and further reading
- Loan Estimate Explainer (CFPB)
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Have a specific home in mind? Analyze a specific property with Reaixo to see its value, monthly cost and risks alongside your financing.
Frequently asked questions
How much does a 1% rate change affect what I can afford?
On a 30-year loan, a one-point change in rate moves the loan a monthly budget supports by roughly 10-12%. Enter your own budget to see the dollars.
Why subtract taxes and insurance?
Your monthly housing budget has to cover property tax, insurance and HOA dues as well as principal and interest. Only what is left supports the loan.
Is this the amount a lender will approve?
No. Lenders also weigh your income, debts, credit and savings. Use this to see how rate changes move your own budget, not to predict approval.
Should I wait for rates to drop?
Nobody can reliably predict rates. This shows what a lower rate would be worth, but a lower rate later could come with higher prices or more competition. See the buy-now-refinance-later guide.
Mortgage Tools
Mortgage Payment & Affordability
Estimate your total monthly housing payment, or how much home you can afford based on income, debts and down payment.
Calculate Now →Compare Loan Offers
Compare rate, APR, term, points, and fees across up to three loan offers side by side.
Compare Offers →Lock or Float?
See how a rate change would affect your payment and work through the lock-vs-float decision.
Explore Scenarios →Should You Refinance?
See your true economic break-even — not just a lower payment from resetting your loan term.
Check Break-Even →Down Payment & PMI Calculator
Compare 5%, 10%, 15% and 20% down side by side — loan amount, PMI, monthly cost, cash to close and PMI timeline.
Compare Down Payments →Mortgage APR Calculator
Calculate the real APR of up to two offers, with points, fees, mortgage insurance and credits, plus a break-even month.
Calculate APR →Mortgage Points Break-Even
See the month discount points pay for themselves.
Find Break-Even →Temporary vs Permanent Buydown
Compare a 2-1 buydown with a permanent rate cut bought with the same dollars.
Compare Buydowns →ARM vs Fixed-Rate Calculator
Stress-test an adjustable-rate mortgage against a fixed rate using real rate caps.
Compare ARM and Fixed →New Construction True Cost Calculator
See what a new construction home actually costs after lot premium, options, upgrades, incentives and closing costs — not just the base price.
Calculate True Cost →Property Tax & Escrow Calculator
Model property tax and insurance changes, escrow shortages, and your current, temporary and stabilized mortgage payment.
Run My Scenario →Compare Renting vs Buying
See the financial outcome of buying vs. renting over any time horizon.
Compare Renting & Buying →Understand the numbers
Buy now, refinance later · ARM vs fixed-rate mortgage · Mortgage Rates & Rate Locks Guide
Financing a specific home?
The loan is only half the decision. Check the property's value, true monthly cost and risks with Reaixo before you commit.
Analyze a property with Reaixo →Educational Use Only: Reaixo is not a lender, mortgage broker, financial advisor, or loan originator. Calculations are estimates for informational and educational purposes only and may not include every cost associated with a mortgage. Rates, APRs, fees, taxes, insurance, mortgage insurance, eligibility, and loan terms vary by borrower, property, lender, loan program, and market conditions. Verify all figures and loan terms with a qualified lender and review your official Loan Estimate before making a financial decision.