Balloon Payment Calculator – Regular Payment, Final Balloon, Total Interest
Compute regular payments and the final balloon for a loan with a large amount due at maturity. Get payment, balloon, total interest, and a printable schedule.
Loan & Balloon Details
Provide the loan size, interest, and balloon structure to see how each payment period behaves.
Portion of the original principal due at the end of the term.
Labels the amortization schedule; defaults to today if blank.
Monthly (12/yr)
How to Use This Calculator
Enter your loan amount, APR, term, and payment frequency. Choose whether the balloon is a percent of the principal or a fixed lump sum, then tap Calculate. The hero updates immediately with the regular payment, balloon, interest, and total cost.
Use the schedule toggle to reveal payment dates, interest, principal, and remaining balance; the Download CSV button exports the full stream for printing or reporting.
Methodology
This calculator solves the present-value identity for a balloon loan: the principal equals the present value of the regular payments plus the discounted balloon. When the periodic rate is zero, it divides the principal minus the balloon evenly across the selected periods.
The schedule simulates each payout, caps the principal so the balloon remains intact until maturity, and adds the final balloon payment as its own row.
- Full support for balloon inputs as a percentage of the original principal or as a fixed amount helps model lease-style or hybrid loan products.
- The table highlights dates, interest, principal, and balances so you can track how quickly the loan amortizes before the balloon.
- Zero-interest loans simply spread the difference between principal and balloon evenly across the chosen number of periods.
Why use this calculator?
- Supports balloon as a percent of the principal or a fixed amount.
- Clear schedule with a highlighted final balloon row that prints well.
- Mobile-first, WCAG-aligned, and fast.