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Credit Utilisation Ratio Calculator

Work out credit utilisation ratio instantly with clear inputs, formula shown and shareable results.

About Credit Utilisation Ratio Calculator

Utilisation is total balances divided by total limits and is one of the heaviest factors in most credit scores. Scoring models reward keeping it well under 30%, and the figure is read from the statement date, not month end.

Formula

Utilisation

Utilisation = total balances / total limits × 100

Worked example

With the default values below, Credit Utilisation Ratio Calculator returns Credit Utilisation Ratio of 30.00%. Change any input above and every figure here is recalculated in your browser.

Inputs used

Total Balances Across Cardsminimum 0
90,000
Total Credit Limitsminimum 0
300,000

Results

Credit Utilisation Ratio
30.00%
Available Credit
$210,000.00
Payment Needed To Reach 30%
$0.00
Assessment
Good — within the 30% guideline

Step by step

  1. 1Values used
  2. 2Utilisation
  3. 3Credit Utilisation Ratio= 30.00
  4. 4Available Credit= 210,000.00
  5. 5Payment Needed To Reach 30%= 0.00
  6. 6Assessment= Good — within the 30% guideline

Assumptions and limits

  • The result is derived only from the 2 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • Figures are estimates. Lenders apply their own rounding, fees and eligibility rules, and rates change. This is not financial advice — confirm the numbers with your lender.
  • This is an estimate for general information and not professional financial, tax or legal advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Figures are estimates. Lenders apply their own rounding, fees and eligibility rules, and rates change. This is not financial advice — confirm the numbers with your lender.

Frequently Asked Questions

Does closing an unused card help?

Usually the opposite — it removes limit, which raises utilisation on the same balances.

Is per-card utilisation checked too?

Yes. A single maxed card can hurt even when the overall ratio looks comfortable.

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