About the Credit Utilization Calculator
This credit utilization calculator works out your credit utilization ratio — the share of your available revolving credit you are using — both across all your cards and for each card individually. Enter the balance and credit limit for up to five credit cards or lines of credit.
Utilization is one of the biggest factors in FICO and VantageScore credit scores after payment history. Scoring models look at the overall ratio and at individual cards, so one maxed-out card can hurt even when your total is low. The calculator shows both, rates the result, and tells you exactly how much you would need to pay down to get under the commonly cited 30% and 10% levels.
Use the balance that appears on your statement, since that is usually what issuers report to the credit bureaus. Paying down a balance before the statement closing date is often the quickest way to lower reported utilization before a loan application.
With the default inputs, the overall credit utilization is 15.4%. Change any value above to recalculate instantly.
How to use the credit utilization calculator
- 1Enter the statement balance and credit limit for each card (up to five).
- 2Leave unused rows at zero.
- 3Read your overall utilization and its rating.
- 4Check the highest single-card figure and the per-card table.
- 5Use the pay-down amounts to plan payments before your statement closes.
Formula and method
Overall utilization divides the total of your revolving balances by the total of your credit limits. Per-card utilization does the same for each card on its own; scoring models consider both, so the highest single-card figure is shown too.
The pay-down amounts tell you how much to reduce your total balances so they fall to 30% or 10% of your total limit. These are rules of thumb, not official cut-offs: lower utilization is generally better, and consumers with top scores often keep it in the single digits. Cards with no limit entered are left out of the ratios.
- Σ balances
- Sum of the statement balances on your revolving accounts
- Σ credit limits
- Sum of the credit limits on those accounts
- X%
- Target utilization, e.g. 30% or 10%
Worked examples
Four cards with $4,000 of balances
Balances of $1,200, $2,500 and $300 against $26,000 of total limits give 4,000 ÷ 26,000 = 15.4% overall. The second card is at 31.25% on its own. Paying $1,400 would bring overall utilization down to 10%.
One nearly maxed card
With $4,500 owed across $8,000 of limits, utilization is 56.25%, and the first card alone is at 75%. Paying $2,100 would bring the total to $2,400 — exactly 30% of $8,000.
Mixed cards at 37% overall
Total balances of $4,850 on $13,000 of limits give 37.3%. The $3,100 balance on a $4,000 card is 77.5% on its own. Paying $950 across the cards gets you to 30% overall.
Frequently asked questions
What is a good credit utilization ratio?+
Keeping utilization under 30% is the common guideline, and people with the highest scores often stay under 10%. There is no magic threshold — lower is generally better, as long as you use your cards occasionally.
Does per-card utilization matter or just the total?+
Both. Credit scoring models look at your overall ratio and at individual cards, so one card near its limit can weigh on your score even if your total utilization is low.
When do card issuers report my balance?+
Most report the balance on your statement closing date, not the due date. Paying before the statement closes lowers the balance that is reported, even if you always pay in full.
Will closing a credit card hurt my utilization?+
It can. Closing a card removes its limit from your total available credit, so the same balances become a higher percentage. Keeping old no-fee cards open usually helps your ratio.
How fast does lowering utilization improve my score?+
Most widely used scores (such as classic FICO 8) look only at the latest reported balances, so once a lower balance is reported — typically within one billing cycle — your score can reflect it on the next credit report update. Newer trended-data models also weigh recent balance history.
Results are estimates for educational purposes and are not financial advice. Rates, fees and terms vary — confirm with your lender or a licensed advisor before making decisions.