Inputs

Results update as you type. The link in the address bar keeps the inputs so you can share it.

The lowest payment the card allows.

Interest paid (the values are listed below)
Minimums only$8,099.76
First payment kept fixed$3,121.34

What this means

  • Paying only the minimum takes about 19.2 years and costs $8,099.76 in interest.
  • Keeping the payment at $141.67 instead saves $4,978.42 and finishes in 58 months.
  • The estimate assumes no new purchases and a steady APR.

What if

A floor $25 higher Never pay less than $50.00. About 13.4 years and $7,032.82 interest.
A 2% minimum Use 2% of the balance in the formula. About 11.4 years and $4,228.61 interest.

About this calculator

What this calculator does

It recalculates the minimum every month from the falling balance, the way most cards do, and counts how long payoff takes. It compares that with paying the first minimum every month.

How it is calculated

interest = balance * APR / 12

minimum = max(floor, balance * percent + interest) for the plus-interest formula

minimum = max(floor, balance * percent) for the percent-only formula

How to read the result

The years figure is the time to reach a zero balance on minimums alone. The fixed comparison shows how much a steady payment saves.

Where to find your formula

Your card agreement or statement explains how the minimum is set. Many cards use a small percent of the balance plus that month's interest, with a dollar floor.

Sources and method

A month-by-month loop using the minimum payment rule you choose, with a floor. Payoff that never ends is flagged instead of shown.

Questions

Why does paying the minimum take so long?

The minimum shrinks as the balance shrinks, so most of each payment goes to interest for a long time.

What formula does my card use?

Check the card agreement or statement. Formulas differ between issuers.

Does it include new purchases or fees?

No. It assumes the card is not used and no fees are added.

What is the floor?

The lowest minimum the issuer accepts, such as $25 or $35. Small balances pay the floor or the full balance.