Credit Utilization Calculator
Calculate your credit utilization ratio and understand how it affects your credit score. Learn strategies to optimize your credit usage for a better score.
Your Credit Cards
Enter balances and limits for each of your credit cards
Your Credit Utilization
Utilization Assessment
Your utilization is in the optimal range for your credit score.
Per-Card Utilization
Recommendations
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What is Credit Utilization?
Credit utilization is the percentage of your available credit that you're currently using. It's calculated as:
Credit Utilization = (Total Balance ÷ Total Credit Limit) × 100
It's one of the most important factors in your credit score, accounting for about 30% of your FICO score.
Optimal Utilization Levels
- 0-10%: Excellent - Best for credit scores
- 10-30%: Good - Generally acceptable
- 30-50%: Fair - May slightly impact score
- 50%+: Poor - Likely hurting your score
Tips to Improve Utilization
- Pay down balances before statement closes
- Request credit limit increases
- Keep old cards open (don't close them)
- Spread charges across multiple cards
- Make multiple payments per month
Frequently Asked Questions
Surprisingly, 0% utilization isn't ideal. Having some activity shows you're using credit responsibly. Aim for 1-10% utilization for the best credit score impact.
Credit card companies typically report your balance once per month, usually on your statement closing date. Paying down balances before this date can improve your reported utilization.
Both matter! While overall utilization is most important, having any single card maxed out can hurt your score. Try to keep both overall and per-card utilization under 30%.
About the Credit Utilization Calculator
Credit utilization is the percentage of your available credit you're currently using. It's the second-largest factor in your FICO score after payment history — accounting for ~30% of the score. This page covers how to optimize utilization for the best score impact.
The Formula
Utilization = Total credit card balances ÷ Total credit card limits × 100. Per-card utilization also matters: a single maxed card hurts even if total is low.
Worked Example
Three cards with $5,000, $8,000, $7,000 limits = $20,000 total. Balances: $1,500, $0, $500 = $2,000 total. Overall utilization: 10%. Single-card utilization on first card: 30%. Both numbers matter to scoring models.
The 30% myth and the 10% reality
Conventional wisdom: 'keep under 30%'. Reality: under 10% gets the best score. Many top-credit-score households run 1-5% utilization. The score boost between 10% and 1% is real but small (5-15 points).
When utilization is measured
Most card issuers report your statement balance to bureaus. If you charge a lot mid-cycle then pay it off, the statement-day balance still shows high utilization. Pay before the statement date to lower the reported balance.
Raising limits to lower utilization
Request credit limit increases every 6-12 months. Most issuers grant them on accounts in good standing. Higher limit, same balance = lower utilization = higher score.
Common Mistakes
- Closing unused cards. Cuts your available credit and raises utilization on remaining cards.
- Cancelling old cards. They contribute to average account age — another score factor.
- Maxing out one card to keep others at zero. Per-card utilization matters too.
Frequently Asked Questions
Does utilization update monthly?
Yes, when issuers report (usually around statement date). Score updates within a few days.
Do installment loans (mortgage, auto) count?
No — only revolving credit (credit cards, lines of credit) figures into utilization.
This calculator is for informational purposes only and does not constitute financial, tax, or legal advice. Consult a licensed professional before making significant financial decisions.