Maximum Loan Amount Calculator
Your borrowing limit is set by two separate ceilings. This shows both, and identifies which one actually binds.
What This Calculator Does
Starting from the monthly payment you can support, the calculator works back to the loan principal that payment services at your rate and term, then sets that figure beside the loan-to-value ceiling imposed by your down payment and the property price. Whichever comes in lower is your genuine maximum.
Who Is This For
Suited to buyers who know their comfortable payment and want the matching price, borrowers with a fixed amount of cash testing how far the down payment stretches, and anyone handed a pre-approval number who wants to understand where it came from.
How It Works
Enter the monthly payment you can carry, the rate and term you expect, and the cash available for a down payment. The calculator returns the payment-driven loan amount, the loan-to-value ceiling, and the constraint that governs.
Frequently Asked Questions
Why two ceilings rather than one?
Because a lender is testing two different things. One is whether you can make the payment, which is a question of income and ratios. The other is how much of the property's value they are prepared to lend against, which is a question of collateral. Both must clear, so the smaller answer becomes your true maximum.
What does loan-to-value measure?
The loan amount divided by the property's value or purchase price, whichever is lower. It is how a lender gauges its own exposure. A larger down payment lowers the ratio, and lower ratios unlock better pricing and can remove mortgage insurance from the payment altogether.
Where does the appraisal fit in?
Squarely in the middle, and this is where deals break. Should the appraisal land below the contract price, the loan-to-value ceiling is calculated on the appraised figure rather than on what you agreed to pay. That gap becomes cash you must bring or a price you must renegotiate.
Should I borrow to the maximum?
No. It marks a boundary, not a target. Borrowing at your ceiling leaves nothing for insurance increases, special assessments, or maintenance — all of which move more in South Florida than buyers arriving from other markets anticipate.
How much does the rate shift the ceiling?
Substantially, because the payment-driven side is entirely rate-sensitive. With benchmark 30-year rates near 6.6-6.7% in mid-2026, a given monthly payment supports a very different principal than it did in a lower-rate market. Re-run the number each time your quote changes.