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Debt & Credit
Estimate fixed-payment payoff time and interest without inventing a date when the balance does not amortise.
Changing currency affects display formatting only. FinTrex does not convert exchange rates or mix currencies inside a calculation.
FinTrex result
Credit Card Payoff Calculator
Estimated payoff time
2y 8m
Total interest
$2,959
Total paid
$10,959
What changes this most?
A higher fixed payment shortens the payoff period and reduces interest because principal falls faster.
Sensitivity check
A roughly 10% move in fixed monthly payment changes the modeled headline result by up to 5 months in this setup.
Assumes the APR and payment stay constant and no new spending is added.
Use the number fields, sliders, or a quick preset. You can fully clear a field while editing.
Formula
Interest is added monthly at APR ÷ 12, then the fixed monthly payment is applied until the balance reaches zero.
The model uses a fixed APR and fixed payment. If the entered payment does not exceed the first month's interest, FinTrex does not invent a payoff date.
Editable rates, growth assumptions, prices, fees, and percentages are planning inputs unless the calculator explicitly identifies a current source.
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