Balloon Payment Loan Calculator - With this balloon payment calculator you can get the monthly and balloon payment or just the balloon payment itself. 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.Use the balloon payment calculator to estimate the monthly payment and the final lump sum of a given balloon loan construction. This financial planning calculator will figure a loan's regular monthly, biweekly or weekly payment and total interest paid over the duration of the loan. This tool figures a loan's monthly and balloon payments, based on the amount borrowed, the loan term and the annual interest rate. This calculator computes the payment amount necessary for a mortgage with a balloon payment, using monthly interest compounding and monthly payments.