EconoPi

Credit Card Payoff Calculator

Payoff time, total interest and what paying extra does

Results update as you type. Inputs are saved on this device.

Display unit only · no FX conversion

Time to pay off

3y 5m
Total interest$3,337
Total paid$10,137
First month's interest$142

Balance and interest

BalanceInterest paid
$6,800$5,100$3,400$1,700$0
Balance and interest
Now25%50%75%End

Paying extra

+$50/mo2y 7m$2,497 interest
+$100/mo2y 2m$2,006 interest
+$200/mo1y 7m$1,451 interest

Paying off credit card debt

Card APRs above 20% compound against your balance every month. A modest increase in the monthly payment cuts both the payoff time and the total interest — this shows exactly how much.

How to use this calculator

  1. Use the statement balance, purchase APR and a fixed payment greater than the first month's interest.
  2. Test an affordable payment increase and compare both months saved and total interest avoided.
  3. For multiple cards, model each balance and choose either highest APR first or smallest balance first.

How to read the result

A result of 50+ years means the selected payment does not reliably amortize the balance within the model's cap. When the payment is viable, the chart shows the slow early decline caused by monthly interest.

What this estimate does not capture

New purchases, variable APR changes, fees and declining percentage-based minimum payments are excluded. Stop adding charges to the modeled balance if the goal is to use the displayed payoff date.

Methodology, assumptions & limits

Inputs are applied directly to standard finance formulas with monthly compounding where relevant. Results are estimates in the selected currency; they do not include every tax, fee, benefit, market event or local rule. Try a conservative and an optimistic case before making a decision.

Last reviewed: August 2026. Primary references include the IRS 2026, SSA, BLS CPI, U.S. DOL, CFPB.

Frequently asked questions

What happens if I only pay the minimum?

A 2%-of-balance minimum goes mostly to interest, stretching payoff past a decade — or never clearing at all.

How much faster if I add $50 a month?

It depends on balance and APR, but it usually cuts years off the payoff and hundreds to thousands off the interest. The scenario cards show your case.

Which card should I pay off first?

Highest APR first (avalanche) minimizes interest; smallest balance first (snowball) keeps momentum.

Do balance transfers help?

A 0% promotional period can save real interest, but check the 3–5% transfer fee and the rate after it ends.

Related calculators

All math runs in your browser and your inputs are never sent to a server. Settings are saved locally and share links encode the state in the URL. For information only — not investment or tax advice.