What this calculator does
Balloon loan payment works out regular instalment on a loan amortised over a long schedule, plus the lump sum due early. Enter your own figures above and the answer updates as you type: nothing is fixed in the code, so the result reflects exactly the numbers you supply.
The formula this calculator evaluates is printed under the tool and explained below, so you can check the working by hand or reuse it in a spreadsheet.
The formula
FormulaPayment M = A·i/(1 − (1+i)^−n), based on the full amortisation term; Balance owing at the balloon date = A(1+i)^p − M·((1+i)^p − 1)/i
The inputs explained
| Field | What to enter |
|---|---|
| Loan amount ($) | A number, measured in your currency. Starts at 300000. |
| Annual interest rate (%) | A number, measured in %. Starts at 6.5. |
| Amortisation schedule (years) | A number, measured in years. Starts at 30. |
| Balloon due after (years) | A number, measured in years. Starts at 7. |
Worked examples
Every figure in the tables below is produced by this page’s own calculator at build time, so the numbers and the tool always agree. Select any row to load that scenario.
How the answer changes with loan amount
Every other input is held at the calculator’s starting values while loan amount varies. Select any row to load that scenario into the calculator.
How the answer changes with loan amount
| Loan amount ($) | Balloon payment due | Regular monthly payment | Total of regular payments before the balloon |
|---|---|---|---|
| 150,000 | $135,624.37 | $948.10 | $79,640.57 |
| 225,000 | $203,436.55 | $1,422.15 | $119,460.86 |
| 300,000 | $271,248.73 | $1,896.20 | $159,281.14 |
| 450,000 | $406,873.10 | $2,844.31 | $238,921.71 |
| 600,000 | $542,497.47 | $3,792.41 | $318,562.28 |
| 900,000 | $813,746.20 | $5,688.61 | $477,843.43 |