Credit Utilization Calculator
From total used and total credit limit, compute the credit utilization rate and the remaining available credit.
Input Data
Results
At a glance:Credit utilization = total used / total limit x 100%. It is a key credit-score factor: lower means less reliance on credit; guides suggest below 30%. Bands: 0-9% excellent, 10-29% good, 30-49% fair, 50-74% poor, 75-100% very poor. Available credit = limit - used. Lenders look at both overall and per-card utilization. WARNING: The score is built by bureaus (TransUnion in HK) from many factors; this is one. Education, not advice.
Formula
Credit utilization = total used ÷ total limit × 100%.
Available credit = total limit − total used.
$$$U=\\dfrac{TotalUsed}{TotalLimit}\\times100\\%$$$$$$Available = TotalLimit - TotalUsed$$$$$$\\dfrac{5{,}000}{15{,}000}\\times100\\%\\approx33.33\\%$$$How to Use
- Sum all card balances into total used.
- Sum all card limits into total limit.
- Check the overall utilization stays below 30%.
FAQ
What utilization is healthy?
Guides commonly suggest below 30%. Bands: 0-9% excellent, 10-29% good, 30-49% fair, 50-74% poor, 75-100% very poor. Lower favors your score.
What does high utilization do?
It signals heavy reliance on credit and can lower your score, hurting later loan/mortgage approvals and the rates offered.
How do I lower utilization?
Pay early, spread spending across cards, request a limit increase, or avoid maxing a single card. Consistent on-time full payment also helps overall credit.
Do I look at one card or all cards combined?
Both matter. Bureaus look at overall utilization (total balance / total limit) and per-card utilization. Even if overall is low, maxing one card (e.g. 95%) is a negative signal. This tool computes the overall rate; keep both low by spreading spending.
Is utilization the only score factor?
No. In Hong Kong, TransUnion builds the score from many factors: payment history (most important — on-time, in-full, no defaults), credit history length, enquiry count (many recent applications look risky), credit mix, and total debt. Keeping utilization low helps but is not sufficient; the foundation is on-time full payment and disciplined applications.
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References
Content review: Calculatorism Finance Team. Results are for reference only; please refer to the relevant authorities for the official figures.