Jumbo Loan Calculator — Mortgage Above the Conforming Limit
A jumbo loan is a mortgage that exceeds the FHFA conforming loan limit ($806,500 in 2025 for most US counties). Jumbo loans have stricter qualification requirements and typically carry slightly higher interest rates. Calculate your monthly payment, total interest, and see whether your loan amount crosses the jumbo threshold.
%
years
%
Principal + interest only — add taxes, insurance, and HOA fees
Total paid
$2,947,002Principal
40.7%
Total interest
59.3%
- 1
Monthly interest rate
r = 7.25% ÷ 12 ÷ 100 = 0.006042 - 2
Number of payments
n = 30 × 12 = 360 - 3
Growth factor
(1 + r)ⁿ = 1.006042ⁿ = 8.7448How much one unit grows over the full loan term at the monthly rate. - 4
Monthly payment
1,200,000 × 0.006042 × 8.7448 ÷ (8.7448 − 1) = 8,186.12
How does this calculator work?
A jumbo loan exceeds the 2025 FHFA conforming limit ($806,500 in most counties). Monthly payment = P × r(1+r)^n / [(1+r)^n − 1]. Jumbo loans require stronger credit (720+), larger down payments (typically 20%), and may carry rates 0.25–0.5% above conforming. Enter loan amount, rate, and term to compute payment and total interest.
Formula
How this is calculated
A jumbo loan — also called a non-conforming loan — is one whose principal balance exceeds the conforming loan limit set each year by the Federal Housing Finance Agency (FHFA). In 2025, the baseline limit is $806,500. Mortgages at or below this limit can be purchased by Fannie Mae and Freddie Mac; jumbo loans cannot, so lenders keep them on their books and set their own risk terms. In high-cost areas (e.g. parts of California, New York, and Hawaii) the limit is higher — check the FHFA's county-level map. The limit is editable in this calculator.
The monthly payment formula is the standard amortising mortgage formula M = P × r(1+r)^n / [(1+r)^n − 1], where P is the principal, r is the monthly interest rate (annual rate ÷ 12 ÷ 100), and n is the total number of monthly payments. Over the life of the loan the total interest paid can be substantial — a $1.2 M loan at 7.25% over 30 years costs over $1.7 M in interest on top of the principal.
Jumbo lenders typically require a down payment of at least 10–20%, a credit score of 720 or higher, substantial cash reserves, and a debt-to-income ratio below 43%. Interest rates on jumbo loans have historically been 0.25–0.5% above comparable conforming rates, though this spread can narrow or reverse during certain market conditions. The payment shown is principal + interest only; add property taxes, homeowners insurance, and any HOA dues to estimate total monthly housing cost.
Frequently asked questions
The FHFA set the 2025 baseline conforming loan limit at $806,500 for one-unit properties in most US counties. High-cost counties can have limits up to 150% of that ($1,209,750). Any loan above the applicable limit for your county is a jumbo loan.
Historically yes, by about 0.25–0.5% above conforming rates. However, during periods of low conforming-loan demand or high investor appetite for jumbo securities, the gap can narrow or even temporarily invert. Shop at least three lenders when seeking a jumbo loan, as pricing varies more than with conforming mortgages.
Most jumbo lenders require at least 20% down to avoid higher rates or additional restrictions. Some lenders offer 10% or 10.01% down programs for well-qualified borrowers, but these typically carry higher rates or require private mortgage insurance (PMI). A larger down payment improves your rate and strengthens your application.
TG we-Calculate Editorial Team. (2026). Jumbo Loan Calculator — Mortgage Above the Conforming Limit [Online calculator]. TG we-Calculate. https://we-calculate.com/calculator/jumbo-loan-calculator
TG we-Calculate Editorial Team. "Jumbo Loan Calculator — Mortgage Above the Conforming Limit." TG we-Calculate. 2026. https://we-calculate.com/calculator/jumbo-loan-calculator.
TG we-Calculate Editorial Team, "Jumbo Loan Calculator — Mortgage Above the Conforming Limit," TG we-Calculate, 2026. [Online]. Available: https://we-calculate.com/calculator/jumbo-loan-calculator
@misc{wecalculate_jumbo_loan_calculator, title = {Jumbo Loan Calculator — Mortgage Above the Conforming Limit}, author = {{TG we-Calculate Editorial Team}}, howpublished = {\url{https://we-calculate.com/calculator/jumbo-loan-calculator}}, year = {2026}, note = {TG we-Calculate} }
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