See the daily, monthly and yearly interest on a balance — and how much of every payment it quietly eats.
Monthly interest
$95
At 22.90% APR on $5,000.
If carried unchanged for a year.
Share of your payment lost to interest.
At 22.90% APR, a $5,000 balance accrues roughly $3 a day, $95 a month, and $1,145 a year if you carried it unchanged. That interest is the price of borrowing — it buys you nothing and disappears the moment the balance is gone.
Of your $200 payment, $95 covers this month's interest and $105 reduces the principal. The higher that principal share, the faster the balance falls — and as it falls, the monthly interest shrinks too, so progress accelerates over time.
Interest scales straight with your rate. Dropping from 22.90% to, say, 12.90% would roughly cut the monthly interest to $54. Options include a 0% balance-transfer card, asking your issuer for a lower rate (which works more often than people expect), or a lower-rate personal loan to consolidate.
Knowing the interest cost is step one; step two is a finish line. The credit card payoff calculator shows exactly when this balance hits zero at your payment, and how much sooner a little extra would get you there.
Credit card payoff calculatorWorked scenarios with the full analysis, so you can see how the numbers move before entering your own.
A common carried balance, showing how much of a typical payment is consumed by interest.
Monthly interest
$95
At 22.90% APR, a $5,000 balance accrues roughly $3 a day, $95 a month, and $1,145 a year if you carried it unchanged. That interest is the price of borrowing — it buys you nothing and disappears the moment the balance is gone.
Of your $200 payment, $95 covers this month's interest and $105 reduces the principal. The higher that principal share, the faster the balance falls — and as it falls, the monthly interest shrinks too, so progress accelerates over time.
Interest scales straight with your rate. Dropping from 22.90% to, say, 12.90% would roughly cut the monthly interest to $54. Options include a 0% balance-transfer card, asking your issuer for a lower rate (which works more often than people expect), or a lower-rate personal loan to consolidate.
Carrying a balance while continuing to use the card — the balance barely moves despite regular payments.
Monthly interest
$95
At 22.90% APR, a $5,000 balance accrues roughly $3 a day, $95 a month, and $1,145 a year if you carried it unchanged. That interest is the price of borrowing — it buys you nothing and disappears the moment the balance is gone.
Of your $200 payment, $95 covers this month's interest and $105 reduces the principal. The higher that principal share, the faster the balance falls — and as it falls, the monthly interest shrinks too, so progress accelerates over time.
Adding $300 of new charges a month means your $200 payment is mostly treading water — after a year the balance would be about $7,607, roughly where it started or higher. You'll have paid $1,407 in interest with little to show for it. Pausing new spending on the card is what turns payments into real progress.
A larger balance at a penalty-level rate, where daily interest alone is substantial.
Monthly interest
$233
At 27.99% APR, a $10,000 balance accrues roughly $8 a day, $233 a month, and $2,799 a year if you carried it unchanged. That interest is the price of borrowing — it buys you nothing and disappears the moment the balance is gone.
Of your $400 payment, $233 covers this month's interest and $167 reduces the principal. The higher that principal share, the faster the balance falls — and as it falls, the monthly interest shrinks too, so progress accelerates over time.
Interest scales straight with your rate. Dropping from 27.99% to, say, 17.99% would roughly cut the monthly interest to $150. Options include a 0% balance-transfer card, asking your issuer for a lower rate (which works more often than people expect), or a lower-rate personal loan to consolidate.
A smaller balance on a lower-rate card, showing how much less interest a better rate costs.
Monthly interest
$40
At 15.90% APR, a $3,000 balance accrues roughly $1 a day, $40 a month, and $477 a year if you carried it unchanged. That interest is the price of borrowing — it buys you nothing and disappears the moment the balance is gone.
Of your $250 payment, $40 covers this month's interest and $210 reduces the principal. The higher that principal share, the faster the balance falls — and as it falls, the monthly interest shrinks too, so progress accelerates over time.
Interest scales straight with your rate. Dropping from 15.90% to, say, 5.90% would roughly cut the monthly interest to $15. Options include a 0% balance-transfer card, asking your issuer for a lower rate (which works more often than people expect), or a lower-rate personal loan to consolidate.
Credit cards quote an APR — annual percentage rate — but they charge interest daily. Your APR is divided by 365 to get a daily rate, applied to your balance each day, and the month's charges are summed onto your statement. This daily compounding means interest accrues even as you carry the balance through the month.
The one escape is the grace period: if you pay your statement balance in full every month, new purchases are interest-free for roughly 21 days. But the moment you carry a balance, you typically lose that grace period, and new purchases start accruing interest from the day they post. That's why carrying any balance makes a card an expensive way to spend.
The single most useful number this calculator shows is how much of your payment goes to interest versus principal. When a balance is large and the rate is high, interest can eat half or more of a modest payment, leaving very little to actually reduce what you owe.
This is the mechanism behind the feeling that a balance 'won't budge'. The fix is mathematical: either raise the payment so more clears principal, or lower the rate so less is lost to interest. Even a small increase in payment has an outsized effect, because every extra dollar of principal reduces the balance that all future interest is calculated on.
Because interest scales directly with your rate and balance, the levers are clear. A 0% balance-transfer card pauses interest entirely for an introductory period, routing your whole payment to principal — powerful if you have a payoff plan and don't run the balance back up. Simply calling your issuer and asking for a lower APR succeeds more often than people expect, especially with a good payment history.
Consolidating card debt into a lower-rate personal loan can also cut interest and give you a fixed payoff date, though it only helps if you stop adding to the cards. Whatever the method, the highest-return financial move for most people carrying a balance at 20%+ is clearing it — no investment offers a guaranteed, tax-free return equal to a credit card's APR.
The minimum is set to keep you in debt. Focus instead on how much of your payment clears principal versus interest — that's what determines progress.
Carrying a balance usually forfeits the grace period, so new purchases accrue interest immediately and keep the balance from falling.
Issuers grant APR reductions more often than cardholders expect. A five-minute call can cut the interest on every future month.
Cashback and points are worthless against a 20%+ APR. Rewards only pay off if you clear the balance in full each month.
Interest is charged daily, not once a month, so paying earlier in the cycle — or more often — slightly reduces what you owe.
It depends on your balance and APR. Interest is roughly your balance times your APR, charged daily and posted monthly. A $5,000 balance at 22.9% costs about $95 a month, or $3.14 a day, if carried unchanged. Enter your numbers above for daily, monthly and annual figures, plus how much of your payment the interest consumes.
Your APR is divided by 365 to get a daily periodic rate, which is applied to your balance each day; the daily amounts are summed onto your monthly statement. Because it's applied daily, interest compounds within the month. If you pay your statement balance in full, the grace period means new purchases incur no interest.
Pay your statement balance in full every month. Doing so preserves the grace period, so purchases are effectively interest-free for around 21 days and you never pay a cent of interest. Interest only applies when you carry a balance from one month to the next — at which point new purchases usually lose the grace period too.
It's your APR divided by 365 — the rate the card applies to your balance each day. For example, a 22.9% APR is a daily rate of about 0.063%. On a $5,000 balance that's roughly $3.14 of interest per day, which is why balances at high APRs grow noticeably even over a single month.
Yes. Once you carry a balance, you typically lose the grace period, so new purchases start accruing interest immediately rather than after ~21 days. New charges also offset your payments, so a balance can stay flat or grow even while you pay every month. Pausing new spending is often what finally lets payments reduce the balance.
Options include transferring the balance to a 0% introductory-rate card, calling your issuer to request a lower APR (which succeeds more often than expected with good payment history), or consolidating into a lower-rate personal loan. Each reduces the interest directly, since interest scales with your rate.
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