Blended Mortgage Rate & Debt Comparison Calculator
See how your current mortgage and other debts compare with a hypothetical scenario where you sell, pay off selected debts, and purchase another home at a new mortgage rate.
This tool is for educational planning only. It does not provide lending, financial, tax, or legal advice, and it does not determine whether a refinance, sale, debt payoff, or home purchase is right for you.
Compare Your Current Debt With a New-Home Scenario
Enter your current mortgage, add any other debts you want to include, then enter a hypothetical new-home purchase. The calculator estimates weighted rates and monthly payment differences.
1. Current Mortgage
2. Other Debts
Add debts such as credit cards, auto loans, HELOCs, student loans, personal loans, or other balances you may want to compare.
3. Hypothetical New Home
Monthly-payment comparisons are estimates. Paying off short-term or unsecured debt with home equity can lower a monthly payment while increasing total interest or placing previously unsecured debt against your home.
What This Calculator Is Comparing
Your Current Mortgage
Your existing first mortgage balance, rate, and principal-and-interest payment form the starting point.
Other Household Debt
Add credit cards, vehicle loans, HELOC balances, student loans, personal loans, and other debts you want included in the comparison.
Estimated Home Equity
The calculator estimates proceeds using your entered home value, mortgage payoff, and selling-cost assumption.
New-Home Financing
Available proceeds are applied first to selected debt payoff and then toward the new-home purchase, along with any extra cash you enter.
How to Read the Results
Weighted Debt Rate
This is a balance-weighted average of the interest rates you entered. It is useful for context but does not by itself measure savings.
Monthly Cash-Flow Difference
This compares the monthly debt payments you entered today with the estimated new housing payment. A lower payment does not automatically mean lower lifetime cost.
Estimated Sale Proceeds
This is a simplified estimate based on the entered home value, mortgage balance, and selling-cost percentage. Actual net proceeds can differ.
New Mortgage Amount
This estimate depends heavily on the assumed sale proceeds, debt payoff amount, purchase price, and any extra cash down payment.
Frequently Asked Questions About the Blended Rate Calculator
It compares the mortgage and other debts you enter with a hypothetical scenario where you sell your current home, pay estimated selling costs and selected debts from available proceeds, and purchase another home using a new mortgage.
You can include credit cards, auto loans, HELOC balances, student loans, personal loans, and other debts you want to compare.
No. A lower monthly payment does not automatically mean a lower lifetime cost. Extending debt over a longer term can reduce monthly payments while increasing the total interest paid over time.
No. This is an educational planning tool only. Judy Collins is a real estate broker, not a mortgage lender or financial advisor. Financing, debt, tax, and legal questions should be reviewed with the appropriate licensed professionals.
Actual results can differ because of the final sale price, mortgage payoff, commissions and selling expenses, taxes, insurance, loan fees, interest rate, loan program, property costs, debt payoff amounts, and lender qualification requirements.
Want to See How This Could Fit Into Your Next Move?
Judy Collins can help you look at your current home value, real estate goals, and possible move scenarios. A licensed lender or financial professional should review the financing and debt details before you make a decision.