Jumbo Loan Calculator

What is jumbo loan calculator?

A jumbo loan calculator estimates the monthly payment on a mortgage that exceeds the conforming loan limit set by the Federal Housing Finance Agency, which in 2026 is $806,500 in most markets and higher in high-cost areas. Jumbo loans are used for high-value homes that do not qualify for conventional conforming financing, and because they cannot be backed by Fannie Mae or Freddie Mac they carry stricter credit, income, and down-payment requirements (often 20% or more down) and slightly different rate dynamics. This calculator applies the standard amortization formula to the loan amount so the principal-and-interest payment matches a lender quote. Use it to budget a high-value purchase, to compare 15-year versus 30-year jumbo terms, or to see how the larger loan amount magnifies the effect of a small rate change. Because the principal is large, even a 0.25% rate difference moves the payment by hundreds of dollars. Run scenarios at different down payments to see how equity buffers the payment and the total interest.

How to use this calculator

1. Enter your home price.
2. Enter your down payment.
3. Enter your loan term.
4. Enter your interest rate.
5. Click the "Calculate" button.
6. View your result instantly — the main result is displayed prominently at the top with a detailed breakdown below it.

When to use this calculator

• Budgeting principal and interest on a high-value home purchase
• Comparing 15-year versus 30-year jumbo terms on total interest
• Seeing how a 0.25% rate change moves the payment at a large balance
• Testing 20% versus 25% down payment scenarios
• Estimating the jumbo payment before talking to a private banker