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Balloon Loan Calculator

Works out the instalment and the balloon lump sum for a loan amortised over one term but repaid in full after a shorter one. The balloon is the true remaining principal after k payments, not the amount borrowed minus the payments made — the two differ by tens of thousands. Interest-only balloons are handled too, with the full schedule.

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Open Balloon Loan Calculator and you get an answer straight away, with no account to create. Its place is under Loans & credit; Car Loan Payoff Calculator and Loan Comparison Calculator answer the questions closest to this one.

How to use it

  1. Open the tool — no signup or install needed.
  2. Enter your input or adjust the available options.
  3. Get your result instantly, then copy or download it.

Frequently asked questions

What does Balloon Loan Calculator do?

Works out the instalment and the balloon lump sum for a loan amortised over one term but repaid in full after a shorter one. The balloon is the true remaining principal after k payments, not the amount borrowed minus the payments made — the two differ by tens of thousands. Interest-only balloons are handled too, with the full schedule.

When would I actually use this?

Before signing: checking whether the instalment fits the budget, comparing two offers at different rates and terms, and seeing what a shorter term really costs each month.

What is the most common mistake?

Comparing monthly instalments instead of total interest. A longer term always looks cheaper each month and costs more overall — the two figures move in opposite directions.

How is Balloon Loan Calculator different from Car Loan Payoff Calculator?

They sit next to each other but answer different questions. Car Loan Payoff Calculator: how long to pay off your car loan, total interest and payoff date — plus the effect of an extra payment. Pick whichever matches what you're starting from — both are free.

Is there a tool for the next step?

Loan Comparison Calculator is the closest one after this: Compare two loans side by side — monthly payment, total interest and total cost — to find the cheaper one.

What else is worth having open alongside it?

Personal Loan Calculator and Student Loan Payoff Calculator — they come up in the same task often enough to be worth a second tab.

Where do the figures come from?

The amortisation arithmetic is standard and exact; the rate is yours to supply. Lenders add fees, insurance and sometimes a different compounding convention, so treat the result as the loan's own cost, not the offer's APR.

Further reading

All guides →
ExplainerA Balloon Loan's Payment Is Small Because the Debt StaysA balloon loan is priced on a long amortisation and repaid on a short one, and the whole instrument lives in that gap. On $250,000 at 6.5%, amortised over 30 years and due at 7, the payment is $1,580.17 and the lump sum still owed is $226,040.61 — 90.4% of what you borrowed.GuideShould You Pay Off a Car Loan Early? The Rule, and the Three ExceptionsSettling a $20,000 car loan at 7 percent two years in saves $1,431 of interest — but only $663 of that is a real gain if the cash was earning 4 percent, and precomputed interest can take $62 or more off the top.GuideStudent Loan Repayment Strategies: Five Routes Through the Same $30,000Standard, extended, overpaid, refinanced or income-linked: the same $30,000 at 5 percent costs anywhere from $35,716 to $52,613. And where a scheme writes the balance off, overpaying can cost $11,178 and buy nothing.ExplainerThe EMI Formula Explained — and Why a Longer Term Is Mostly a Transfer to the LenderEMI = P·i·(1+i)^n ÷ ((1+i)^n − 1). On $300,000 at 6 percent, doubling the term from 15 to 30 years cuts the payment by 29 percent but multiplies the interest by 2.2 — from $155,683 to $347,515.ComparisonWhat the APR Includes That the Rate Does Not — and Why 6 % Can Beat 7.5 % BackwardsA 6 percent loan with a 3 percent fee and compulsory insurance carries an APR of 10.7 percent and costs $486 more than a 7.5 percent loan with no fees at all. The APR is the figure that catches it.ExplainerPaying Off a Loan Early: What Actually ChangesAn overpayment earns exactly the loan's rate, risk-free and after tax. On $200,000 at 5.00 percent over 25 years, $20,000 paid at the start saves $42,092 of interest; the same sum at year 16 saves $11,088; applied to the payment instead of the term it saves only $15,075.