A reverse mortgage lets homeowners 62 and older convert home equity into tax-free cash without monthly mortgage payments. Here is how the math works and what drives your number.
How does a reverse mortgage calculator work?
A reverse mortgage calculator multiplies your home's appraised value by a HUD principal-limit factor (PLF) that rises with your age and falls when interest rates rise. The three inputs that move your number most are the age of the youngest borrower, the home's value (capped at the FHA lending limit of $1,209,750 for 2025), and the expected interest rate. Existing mortgage balances and closing costs are subtracted from the gross figure. Because PLFs are set by HUD and updated periodically, online estimates are directional, not final. A licensed specialist at 1-800-MEDIGAP can run your exact numbers and explain every line.
How much can you borrow with a reverse mortgage?
Most borrowers can access roughly 30% to 60% of their home's value, depending on age and rates. A 62-year-old typically qualifies for a smaller percentage than an 80-year-old because the loan is expected to last longer. For example, on a $400,000 home, a younger borrower might tap around $140,000 in principal limit, while an older borrower could reach $220,000 or more. Any existing mortgage must be paid off first from the proceeds, which reduces the cash you receive. These figures are illustrative, not guarantees. Call 1-800-MEDIGAP for a calculation based on your home and birthday.
What factors change your reverse mortgage estimate?
Five variables drive every reverse mortgage estimate: the youngest borrower's age, appraised home value, the FHA county lending limit, the expected interest rate, and the ongoing mortgage insurance premium. Higher age and lower rates both increase your available funds. The 2025 FHA limit caps the value used in the formula at $1,209,750, so homes worth more than that do not get extra credit on a standard HECM. Property type, required repairs, and any set-aside for taxes and insurance can also reduce net proceeds. A specialist can show you how each lever affects your bottom line.
Are reverse mortgage calculator results guaranteed?
No. Online reverse mortgage calculators give estimates, not loan approvals or locked figures. Your final principal limit depends on a professional appraisal, the interest rate at closing, HUD's current PLF tables, and verification of your eligibility through financial assessment and HUD-approved counseling. Rates and FHA lending limits change, so a number you see today may differ at closing. Treat any calculator output as a starting point for a conversation. For an accurate, personalized estimate with no obligation, call the licensed specialists at 1-800-MEDIGAP, the trusted toll-free for senior financial questions.
Is a reverse mortgage right for you?
A reverse mortgage can be a strong fit for homeowners who want to stay in their home, have substantial equity, and need supplemental income or a financial cushion. It may be a poor fit if you plan to move soon, want to leave the home debt-free to heirs, or can cover needs with cheaper options. You must keep paying property taxes, homeowners insurance, and maintenance, or the loan can become due. The decision is personal and depends on your full financial picture. Call 1-800-MEDIGAP to talk it through with a specialist before you commit.