Minimum vs Fixed Payment Calculator — Credit Cards

A minimum vs fixed payment comparison tool is a free online tool that compares credit card payment strategies. It shows the dramatic difference between making only minimum payments and paying a fixed amount each month. Free, no sign-up required.

Credit Card Payoff Inputs

?Enter your balance.
?Enter your apr.
?Enter your fixed payment.

The minimum payment is calculated as 2% of the balance or $25, whichever is higher, and shrinks each month as the balance drops.

End of inputs

Minimum vs Fixed Payment

Metric
Minimum Payment
2% of balance or $25, whichever is higher
Fixed Payment
$200.00/mo every month
Monthly Payment$100.00$200.00
Total Interest$43,417.39$1,749.90
Payoff Time80 yr 8 mo2 yr 10 mo
Total Cost$48,417.39$6,749.90
Fixed payment saves $41,667.49 in interest and 934 months (77 yr 10 mo).
Key Insights
At 22.00% on a $5,000.00 balance, minimum payments of $100.00 take 80 yr 8 mo and cost $43,417.39 in interest.
Warning: the minimum-payment interest ($43,417.39) exceeds the original balance — you pay more in interest than you borrowed.
A fixed payment of $200.00 cuts the payoff to 2 yr 10 mo and saves $41,667.49 in interest.

Guide

How to Use This Calculator

  1. 1Enter your current credit card balance.
  2. 2Set the APR on the card — for credit cards this is typically 18% to 29%.
  3. 3Set the fixed monthly payment you are considering paying each month.
  4. 4Review the side-by-side comparison: monthly payment, total interest, payoff time, and total cost for the minimum-payment scenario versus the fixed-payment scenario.
  5. 5Read the AI Insight panel for a personalized analysis of how many years and dollars the fixed payment saves.
  6. 6Adjust the fixed payment up and down to find an amount that fits your budget while dramatically shortening the payoff.
Formula

How It's Calculated

MINIMUM PAYMENT SCENARIO (2% of balance or $25, whichever is higher):
  Each month:
    minimumPayment = max(balance × 0.02, 25)
    interest = balance × (APR / 12)
    principalPaid = minimumPayment − interest
    balance = balance − principalPaid
  Repeat until balance ≤ 0 (cap at 600 months to avoid infinite loops).
  totalInterestMin = sum of all interest paid
  payoffMonthsMin = number of months
  monthlyPaymentMin = the first month's minimum (display value)
  totalCostMin = originalBalance + totalInterestMin

FIXED PAYMENT SCENARIO (constant payment every month):
  Each month:
    payment = fixedPayment   (constant)
    interest = balance × (APR / 12)
    principalPaid = min(payment − interest, balance)
    balance = balance − principalPaid
  Repeat until balance ≤ 0.
  totalInterestFixed = sum of all interest paid
  payoffMonthsFixed = number of months
  monthlyPaymentFixed = fixedPayment
  totalCostFixed = originalBalance + totalInterestFixed

WHY FIXED WINS:
  The minimum payment shrinks with the balance, so most of it keeps
  covering interest. The fixed payment stays constant, so as the
  balance drops a growing share goes to principal — dramatically
  shortening the payoff and cutting total interest, often by 70%+ on
  high-APR revolving debt.
Glossary

Key Terms

FAQ

Frequently Asked Questions

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