Credit Utilization Calculator

How it is calculated

Credit utilization is the share of your available credit that you are using: utilization = total balances / total limits × 100. Enter the combined balance of all cards and the combined limit of all cards in the same currency. The tool rates the result with fixed thresholds: below 30% is Good, from 30% up to 50% is Fair, and 50% or more is High. The limit must be greater than zero. A balance above the limit is allowed and gives a figure over 100%. These bands are a common rule of thumb; lenders and scoring models each use their own methods, and the tool does not predict a credit score.

Common mistakes

• Using the limit of a single card against the balance of all cards.
• Counting only the statement balance when the balance reported to lenders may be a different day's figure.
• Including a loan or mortgage: revolving credit cards are what this ratio measures.
• Closing an unused card and forgetting that it lowers the combined limit and raises utilization.
• Assuming 30% is a hard line; the bands are a rule of thumb, not a lender's rule.