Mortgage & real estate

Jumbo Loan Calculator

Estimate the monthly payment on a jumbo mortgage, the total interest over the term and how extra payments shorten it.

  • Free
  • No sign-up
  • Updated for 2026

Your loan

$
%
yr
Extra payments
$

added to every payment

Enter the loan amount, rate and term to see the payment.

Worked example

With these example inputs:

  • Loan amount$800,000
  • Interest rate7%
  • Term30 yr

Monthly payment: $5,322

  • Loan amount$800,000
  • Total interest$1,116,071
  • Total of payments$1,916,071
  • Payoff time30 yr

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What this jumbo loan calculator does

This calculator finds your monthly payment on a jumbo loan. You enter the loan, rate, term, and any extra. The tool then amortizes the loan. So you see the payment and the total interest. It also shows how extra payments help. The result uses the currency you choose.

What a jumbo loan is

A jumbo loan is a large mortgage. It tops the limit for a standard loan. So it often needs stronger credit and reserves. Rates can differ from a normal mortgage. The math, though, is the same. This tool handles those big numbers.

How it is calculated

The tool spreads the loan amount over the term. It adds interest at your rate each month. So a higher rate lifts the payment. A longer term lowers it. The result is your monthly payment. The calculator takes care of this for you.

What the result tells you

The result shows your monthly payment. Eight hundred thousand at seven percent over thirty years is about five thousand three hundred. A higher rate raises it. A longer term lowers it. So it shows the regular bill. It is a guide, not an exact total.

The loan amount

Your loan amount is the sum you borrow. It is the price minus your down payment. A bigger loan lifts the payment. So this number sets the base. Use the amount after your deposit. It anchors the whole calculation. Enter your loan amount.

The interest rate

Your interest rate is the yearly cost of the loan. It is the rate the lender charges. A higher rate lifts the payment fast. So this number is a big driver. Use the quoted annual rate. Even a small change matters here. Enter your interest rate.

The term

Your term is the length of the loan. It is the years to pay it off. A longer term lowers the payment. So this number spreads the cost. But more years mean more interest. Thirty years is the common choice. Enter your term.

The extra payment

Your extra payment is added each month. It goes straight to the balance. So it shortens the loan and cuts interest. Even a small extra adds up over time. Leave it at zero for the base case. Raise it to see the savings. Enter your extra payment.

The total interest

The tool also shows the total interest. It is every interest dollar over the term. On a big loan this is huge. So a lower rate saves a lot. Extra payments cut it further. It is the real cost of borrowing.

How to use it

Enter your loan amount first. Add the rate, term, and any extra. Read the monthly payment in the currency you choose. Then see the total interest. Try a shorter term. Add an extra payment. Use it to plan a jumbo mortgage.

A final tip

Use this to size a jumbo payment before you apply. Remember it leaves out tax and insurance. Add those to get the full bill. Jumbo rates and rules vary by lender. A larger down payment can help. Do not borrow to your limit. A careful plan needs the full cost.

Frequently asked questions

What makes a mortgage a jumbo loan?

A jumbo loan is one larger than the conforming limit set each year, so it cannot be bought by the main agencies and often has slightly stricter terms.

Do jumbo loans cost more?

Rates can be similar to or a little above conforming loans, but lenders usually want a larger down payment, strong credit and more reserves.