Free tool
Credit Utilization Calculator
Credit utilization is how much of your available credit you are using — your reported balance divided by your credit limit, shown as a percentage. It is about 30% of your FICO score, second only to payment history. This calculator is free, needs no login, and runs entirely in your browser.
Enter each card's balance and credit limit, and you will instantly see your per-card utilization for each card plus your overall utilization across all of them — all calculated in your browser.
Your cards
Enter at least one card's balance and credit limit to see your utilization.
Educational content only — utilization math, not a credit decision, financial advice, or a score prediction. Results show your ratios, not what your score will do.
How credit utilization works
What utilization is
Utilization is your reported balance divided by your credit limit, shown as a percentage. It is the biggest part of the amounts-owed category — about 30% of your FICO score — so after paying on time it is the lever you control most directly.
Per-card vs overall
Utilization is scored two ways that both matter: per-card (each individual card) and overall (all balances divided by all limits). Maxing out one card can hurt you even when your total across every card still looks low.
Timing: the statement closing date
Issuers report your balance on the statement closing date, not on the due date about three weeks later. Pay down to a small amount a few days before the statement closes so a tiny balance is what reports, then pay the rest by the due date to avoid interest.
Sweet spot — Under 10%, with the low single digits (roughly 1–9%) being ideal — myFICO has cited an average around 4%. This is the target, not 30%.
OK, not optimal — Under 30% avoids real damage, but it is the floor, not the goal. Lower is better — aim to bring this down toward under 10%.
High — Between 30% and 50% is working against you. Pay this down toward under 10% to put utilization back in your favor.
Critical — Over 50% is a significant drag on your score. Prioritize paying this down, starting with your most-maxed card first.
How to lower it
- Pay down a few days before your statement closing date. Issuers report the balance that shows when the statement closes — not your due-date balance about three weeks later — so a small balance at close is what reports.
- Keep no-annual-fee cards open. Closing a card removes its limit from your total, which can raise your overall utilization overnight even if you owe the same amount.
- Ask for a credit-limit increase. A higher limit lowers your utilization even when your spending does not change — and ask whether your issuer can do it without a hard inquiry, since that varies by issuer.
- Pay your most-maxed card first. Per-card utilization matters, so taking one maxed card down helps more than spreading the same payment thin across several already-low cards.
Frequently asked questions
What is a good utilization ratio?
Under 10% is good, and the low single digits (roughly 1–9%) is the sweet spot — myFICO has cited an average around 4%. Under 30% is only the floor to avoid real damage, not the target.
Is utilization measured per card or overall?
Both. Your score looks at each card on its own (per-card) and at all your balances divided by all your limits (overall), so maxing out a single card can hurt you even if your total looks low.
Does this calculator affect my credit or store my data?
No. It is educational and runs entirely in your browser — no login, nothing is sent anywhere, and it is not a credit pull. It does nothing to your credit and saves none of your numbers.
How do I lower my utilization quickly?
Pay your balance down before your statement closing date, since that is the balance that reports. Focus on your most-maxed card first, and ask your issuer for a credit-limit increase (ideally without a hard inquiry).
Is 0% utilization best?
Not quite. Reporting a tiny balance is slightly better than a flat 0%, because it shows the account is active and managed. The difference is small, though — anything under 10% is fine.