Credit utilization — the share of your available credit you’re actually using — is one of the biggest factors in most credit scores, right after your payment history. Lenders and scoring models look at it both per card and across all your cards combined. Here’s how to work out your own number.
| Card | Balance | Limit | Utilization |
|---|---|---|---|
| Card 1 | |||
| Card 2 | |||
| Card 3 |
Utilization counts for roughly 30% of a typical FICO score, making it one of the single biggest levers you can pull quickly — unlike payment history, a lower balance can improve your utilization the moment it's reported. If you're also carrying card debt you're trying to clear, pair this with the credit card payoff calculator to see how long it will take.
Frequently asked questions
What is a good credit utilization ratio?
Most guidance treats 30% as a ceiling rather than a target. The highest credit scores are usually associated with overall utilization under about 10%.
Does checking my own utilization here affect my credit score?
No. This calculator only works with the numbers you type in; it doesn't access your real accounts, your credit report or any credit bureau.
Does utilization matter per card or only overall?
Both. Scoring models look at your combined utilization across all cards, but a very high balance on a single card can also count against you on its own.
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This calculator is for general guidance only and is not a credit check or financial advice. It does not access your real accounts, your credit report or any credit bureau.