What Is Credit Utilization and How Do You Calculate It?

Credit utilization is the share of your available revolving credit that you are using right now. Divide the balances on your credit cards and other revolving accounts by their combined limits, multiply by 100, and you have the ratio as a percentage. A $600 balance on a card with a $2,000 limit works out at 30 percent.

Lenders and scoring models watch this figure because it hints at how stretched a borrower is. Below you will find the calculation, the timing quirks that catch people out, and the habits that tend to keep the number down. This is general information rather than advice for your situation; a nonprofit credit counselor or another financial professional can look at your actual accounts.

Which accounts are included

Utilization concerns revolving credit: accounts with a limit you can borrow against, repay and borrow against again. Credit cards are the main example, and some scoring models also count personal lines of credit. Installment debts such as car loans, student loans and mortgages have a fixed balance that shrinks over time and are measured in other ways. The guide to revolving vs installment credit sets out the difference in more depth.

How to calculate credit utilization step by step

1. List every open revolving account with its current balance and its credit limit.
2. Add up the balances.
3. Add up the limits.
4. Divide total balances by total limits.
5. Multiply by 100 to turn the result into a percentage.

Then repeat steps 4 and 5 for each card on its own, because scoring models typically consider both the overall ratio and the ratio on individual accounts. Use the limits and balances shown on your latest statements or credit reports, since those are the figures lenders actually receive.

A worked example

The figures are purely illustrative. Overall the picture looks moderate, yet Card B sits close to its limit. A card that is nearly maxed out can weigh on a score even when the combined ratio seems reasonable.

What counts as a good ratio?

No official cut-off exists. A rule of thumb repeated by many lenders and consumer guides is to stay under roughly 30 percent, and people with the strongest scores often use far less than that. Zero is not automatically ideal either: some models favor evidence that you use credit and repay it, so a small balance that gets paid off can read better than no activity at all. Treat these as broad patterns, not targets that guarantee a particular score.

Why timing matters

Card issuers usually report balances to the credit bureaus once a month, often around the statement closing date. The balance a scoring model sees can therefore be higher than what you owe after paying, if you spend heavily during the month and settle the bill once the statement has been produced.

Two consequences follow:

• Someone who pays in full every month can still show a high ratio when large purchases land just before the statement closes.
• In many models utilization reflects only the latest reported balances, so it can rise or fall quickly. Some newer models also look at how balances trend over several months.

Ways people keep utilization low

• Paying before the statement closes. An extra payment mid-cycle lowers the balance that gets reported.
• Spreading spending. Keeping any single card away from its limit helps the per-card figures.
• Keeping older cards open. Closing an unused card removes its limit from the total, which can push the ratio up. Weigh that against any annual fee.
• Asking for a higher limit. A larger limit lowers the ratio if spending stays the same, though the request may involve a hard or soft credit check, so ask the issuer which.
• Paying balances down. The most direct route of all. Logging card payments in a budget spreadsheet makes the progress visible month by month.

Common misunderstandings

Does carrying a balance help my score?

No. Paying interest is not needed to build credit. Using a card and paying the statement in full shows the same activity without the cost.

Do debit cards count?

No. A debit card draws on your own money and is not reported as credit.

Does moving debt to a new card fix utilization?

Moving a balance does not reduce what you owe, although a new card adds to your total limit. A balance transfer carries its own fees and rules that are worth understanding first.

Is utilization the same as debt-to-income?

No. Utilization compares balances with credit limits. Debt-to-income compares monthly debt payments with income, and lenders look at it separately when you apply.