Enter each card’s limit and current balance. This calculator shows your utilization per card and overall, flags what’s hurting your score, and tells you which card to pay down first for the fastest reported improvement. Free, no email, nothing stored.
| Card | Credit limit ($) | Current balance ($) |
|---|---|---|
The two numbers that matter
Scoring models look at utilization two ways: overall (all balances ÷ all limits) and per card. A single maxed-out card hurts even when your overall ratio is fine, which is why the recommendation above targets your highest-ratio card, not your biggest balance. Under 30% avoids most score damage; under 10% is optimal.
Timing beats effort
Issuers report the balance on your statement date, not your due date. Pay a card down a few days before the statement closes and the lower number is what the bureaus see. That often moves your score within one cycle, because utilization has no memory. The full mechanics are in how fast utilization moves your score.
If the balances themselves are the problem
Timing adjustments manage the ratio; they do not reduce the debt. For the actual payoff plan, the card payoff calculator turns your balance and APR into a date, and the snowball vs. avalanche calculator orders a multi-card payoff. If your limits are small because you’re rebuilding, a bigger-limit secured card makes low utilization mechanically easier — see how to use a secured card to build credit.
Frequently asked questions
What is a good credit utilization ratio?
Under 30% avoids score damage; under 10% is optimal. Zero isn’t better than low — a small reported balance shows active, managed use.
Is utilization calculated per card or across all cards?
Both. Overall utilization matters most, but individual card ratios count too — one maxed card drags your score even if the others sit at zero.
Does paying before the due date lower my utilization?
Only if the payment lands before the statement closing date — that’s the balance issuers report. Paying by the due date avoids interest but reports the higher number.