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All Credit Card Calculators

Sixteen free calculators covering every stage of paying down (or avoiding) credit card interest.

Credit Card Interest Calculator

Estimate how much of your next payment goes to interest versus principal — and what your balance could cost you over time.

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Credit Card Payoff Calculator

Enter your balance, APR, and monthly payment to see your estimated payoff date and total interest cost — then test how extra payments shorten it.

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Credit Card Minimum Payment Calculator

Estimate your minimum payment under common formulas — and what paying only the minimum every month could cost.

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Credit Card Balance Transfer Calculator

Compare what you'd pay by staying put versus transferring your balance — fees included — to see your real net savings.

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Multi-Card Debt Payoff Calculator (Snowball vs. Avalanche)

Add every card you're carrying a balance on and see, side by side, which order of payoff — smallest balance first or highest APR first — saves you more.

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Credit Card APR Calculator

Turn an abstract percentage into real numbers: see what your APR costs you per month and per year on your actual balance.

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Credit Card Daily Interest Calculator

See the daily periodic rate typically derived from your APR, and how many dollars that adds up to per day and per billing cycle.

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Extra Payment Savings Calculator

Add a fixed extra amount to your monthly payment and see an estimate of how many months and how many dollars in interest it could save you.

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0% Intro APR Calculator

Find the monthly payment required to clear your balance before the promotional 0% period ends, and see the cost if you fall short.

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Deferred Interest Calculator

For "no interest if paid in full" store card and retail financing offers: see the interest building up in the background, the payment that avoids it, and what you owe if you miss the deadline.

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Credit Utilization Calculator

Your utilization ratio is one of the biggest factors in your credit score after payment history. See yours instantly, per card and overall.

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Debt Consolidation vs. Balance Transfer Calculator

Two very different ways to tackle the same balance — compare total cost side by side before you decide.

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Cash Advance Calculator

See the full cost of a credit card cash advance: the fee, interest that starts the same day, and what it works out to per year.

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Bi-Weekly Credit Card Payment Calculator

See how much paying half your payment every two weeks saves, and how much of it you would get just by paying a little more each month.

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Credit Card Interest Charge Checker

Enter the numbers from your statement to see whether the interest charge matches your APR, and what to look for if it doesn't.

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Fed Rate Change Credit Card Calculator

See how a Federal Reserve rate change moves your card's APR, this month's interest, and the total cost of paying off your balance.

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