Mortgage Calculators

Balloon Mortgage Calculator

A balloon mortgage keeps payments low by amortizing over a long schedule, then requires a large lump sum when the short term ends.

Inputs

Loan amount

Interest rate

Amortized over (years)

Balloon due in (years)

Estimates only. Change any value to recalculate instantly.

Balloon payment due $250,990 after 7 years of $1,678.74/mo

Monthly payment $1,678.74

Balloon due $250,990

Principal paid by then $29,010

Interest paid by then $112,005

At the balloon date

Balloon owed $251k
Principal paid $29k

Loan balance Balance

Because payments follow a 30-year schedule, you have repaid only $29,010 of principal when the $250,990 balloon comes due. Plan to refinance or sell before then.

Yearly schedule to the balloon dateView table

Year	Paid	Principal	Interest	Balance
1	$20,145	$3,438	$16,706	$276,562
2	$20,145	$3,651	$16,494	$272,911
3	$20,145	$3,876	$16,269	$269,035
4	$20,145	$4,115	$16,030	$264,921
5	$20,145	$4,368	$15,776	$260,552
6	$20,145	$4,638	$15,507	$255,914
7	$20,145	$4,924	$15,221	$250,990

How this calculator works

This calculator runs entirely in your browser — nothing you enter is sent anywhere, and there is no sign-up. Change any input and the result, breakdown, and schedule update instantly.

Rate and cost fields are pre-filled with current benchmarks (Federal Reserve / Freddie Mac via FRED (St. Louis Fed)), so your first result is already realistic — replace them with your own quote to see your numbers. To weigh one option against another, use the loan comparison calculator.

30-year fixed mortgage rate, 2019–2026

Source: Freddie Mac PMMS via FRED. Annual averages; latest weekly reading shown.

Common questions

Is this calculator free, and do I need to sign up?

Yes and no — it is completely free and asks for no account or personal details. Every calculation happens in your browser, so nothing you type is stored or sent to us.

How accurate are the results?

The math is exact for the inputs you give it, but the defaults are national benchmarks — your real rate, fees, taxes, and insurance will differ. Treat the result as a close estimate to refine with a real quote.