Balloon Payment Loan Calculator - With this balloon payment calculator you can get the monthly and balloon payment or just the balloon payment itself. Use the balloon payment calculator to estimate the monthly payment and the final lump sum of a given balloon loan construction.This tool figures a loan's monthly and balloon payments, based on the amount borrowed, the loan term and the annual interest rate. A balloon loan is usually rather short, with a term of three to five years, but the payment is based on a term of up to 15 years. Under this arrangement, the borrower pays interest on an annual basis to the lender and makes a balloon payment of principal at the end of the payment term. This calculator computes the payment amount necessary for a mortgage with a balloon payment, using monthly interest compounding and monthly payments. Choose balloon to have a loan with a balloon payment where the term of the loan will be shorter than the amortization term.