What Is Credit Utilization Ratio? How to Calculate Yours - NerdWallet (2024)

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Your credit utilization ratio is how much you owe on all your revolving accounts, such as credit cards, compared with your total available credit — expressed as a percentage. It's important because it's one of the biggest factors in your credit score.

Good credit utilization follows the 30% rule

NerdWallet suggests using no more than 30% of your limits, and less is better. People with the best credit scores often have a credit utilization number in the single digits.

What is 100% credit utilization?

Having 100% credit utilization means that you have used all your available credit. Charging too much on your cards, especially if you max them out, is associated with being a higher credit risk. That’s why running up your cards will lower your score.

There are other ways you might accidentally reach that 100% credit utilization mark. Take this example: You have three credit cards. Card No. 1 has $5,000 of available credit, Card No. 2 has $2,000 and Card No. 3 has $3,000. You have maxed out Cards Nos. 1 and 2 and decide to close Card No. 3 since it has a $0 balance and you don’t use it often. Suddenly, your overall credit utilization jumps from 70% to 100%, risking a drop in your credit score and leaving you with no wiggle room for emergencies.

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How to calculate your credit utilization ratio

You can calculate credit utilization yourself using this formula:

  • Add up the balances on all your credit cards.

  • Add up the credit limits on all your cards.

  • Divide the total balance by the total credit limit.

  • Multiply by 100 to see your credit utilization ratio as a percentage.

For example, say you have two credit cards, both carrying a $500 balance. One card has a $2,000 credit limit and the other a $3,000 credit limit. That works out to a credit card utilization of 20%.

You can also use the credit utilization calculator below to calculate it for you, or sign up with NerdWallet to get a free weekly credit score update that shows your utilization.

Use a credit utilization calculator

There are two types of credit utilization ratios: per-card and overall. Per-card utilization measures how much of each card’s credit limit you’re using, while overall utilization takes all your cards and their limits into account.

Enter the balance and credit limit for up to three cards in this calculator to see your per-card and overall utilization figures:

» MORE: See more financial calculators from NerdWallet

Is per-card or overall utilization more important?

Both per card and overall utilization rates are important. Credit scores can take the ratio into account in both ways.

Why that’s important to know: If you try to counteract the negative effects of a maxed-out credit card by opening a new card and keeping its balance at $0, the high utilization ratio on the maxed-out card still may hurt your score.

If you avoid using more than 30% of the credit limit on any one card, the overall usage takes care of itself.

What Is Credit Utilization Ratio? How to Calculate Yours - NerdWallet (2)

» MORE FOR CANADIAN READERS: What's a good credit utilization ratio?

How does credit utilization affect my credit score?

Credit utilization is one of the top factors used to calculate your credit score, so it’s important to keep an eye on it. Paying your bills on time and in full can keep the balances on your credit cards low and, ideally, below that 30% threshold.

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What Is Credit Utilization Ratio? How to Calculate Yours - NerdWallet (3)

Did you know...

You might have heard some people recommend that leaving a small balance on your credit cards each month helps your credit score. This is a myth. It’s best to pay your balance in full every month. Not only will you avoid paying interest but you’ll also keep your credit utilization low, which will help your credit score.

Strategies for keeping your credit utilization low

There are some things you can do to keep your credit utilization low.

  • Make payments throughout the month to reduce your credit card balance. By paying a portion of your balance each week or every few weeks, it’s likely that your lowest balance will be reported to the credit bureaus. A lower balance means you’re using less of your available credit, which translates to a lower credit utilization score.

  • Set alerts on your credit cards. Many cards offer alerts you can set for all kinds of things, including when you’ve used a certain portion of your available credit. Set that alert to notify you once you’re close to hitting 30% (or less) to stay on top of spending.

  • Ask for a higher credit limit. Calling your lender to ask for a higher credit limit can be one way to provide some cushion while you pay down your balances and work toward a 30% or lower credit utilization. But, this works only if you commit to not overspending and using the newly available credit.

What Is Credit Utilization Ratio? How to Calculate Yours - NerdWallet (2024)

FAQs

What Is Credit Utilization Ratio? How to Calculate Yours - NerdWallet? ›

Add up the balances on all your credit cards. Add up the credit limits on all your cards. Divide the total balance by the total credit limit. Multiply by 100 to see your credit utilization ratio as a percentage.

How do you calculate credit utilization ratio? ›

Add up the credit limits of all your revolving credit accounts. Divide your total revolving credit balance (from Step 1) by your total credit limit (from Step 2). Multiply that number (from Step 3) by 100 to see your credit utilization as a percentage.

How do you calculate utilization rate? ›

Calculating the utilization rate consists of dividing an employee's total billable hours by the total available hours. In order to express the rate in percentage form, the resulting figure should be multiplied by 100.

What is the best credit utilization ratio to build credit? ›

Assuming you're able to pay your balance on time each billing cycle, a 10% utilization ratio is excellent. Lenders will likely look favorably on this as a sign you are responsible with your credit. When you stick to this ratio, you may quickly and positively impact your credit score.

What is the 30 credit utilization rule? ›

This means you should take care not to spend more than 30% of your available credit at any given time. For instance, let's say you had a $5,000 monthly credit limit on your credit card. According to the 30% rule, you'd want to be sure you didn't spend more than $1,500 per month, or 30%.

What is a credit utilization ratio? ›

Your credit utilization ratio, generally expressed as a percentage, represents the amount of revolving credit you're using divided by the total credit available to you. Lenders use your credit utilization ratio to help determine how well you're managing your current debt.

What is an example of a credit utilization ratio? ›

Your total credit utilization ratio is the sum of all your balances, divided by the sum of your cards' credit limits. So, for example, if you have two credit cards, each with a $1,000 limit, and owe $500 on one and $250 on the other, your credit utilization ratio is $750 divided by $2,000, or 37.5 percent.

How do you calculate maximum utilization? ›

The calculation is straightforward and is simply the actual output of units divided by the potential output of units. That is: Capacity Utilization Rate = Actual Level of Output Maximum Level of Output × 100 % .

How does credit utilization work? ›

Your credit utilization ratio, sometimes called your credit utilization rate, is the amount of revolving credit you're using divided by the total amount of revolving credit you have available. It's expressed as a percentage, and it can be an important factor in your credit scores.

What is an example of utilization? ›

When you utilize something, you use it, whether it is a tool, like when you utilize a pen to write something down, or a skill or talent, like the speed you utilize when you run a race. So utilization is the act of using, like the utilization of your voice that enables you to sing a song.

What is a bad credit utilization ratio? ›

To maintain a healthy credit score, it's important to keep your credit utilization rate (CUR) low. The general rule of thumb has been that you don't want your CUR to exceed 30%, but increasingly financial experts are recommending that you don't want to go above 10% if you really want an excellent credit score.

Is it bad to have zero balance on a credit card? ›

Keeping a zero balance is a sign that you're being responsible with the credit extended to you. As long as you keep utilization low and continue on-time payments with a zero balance, there's a good chance you'll see your credit score rise, as well.

What habit lowers your credit score? ›

Making a Late Payment

Every late payment shows up on your credit score and having a history of late payments combined with closed accounts will negatively impact your credit for quite some time. All you have to do to break this habit is make your payments on time.

Should I pay off my credit card in full or leave a small balance? ›

It's a good idea to pay off your credit card balance in full whenever you're able. Carrying a monthly credit card balance can cost you in interest and increase your credit utilization rate, which is one factor used to calculate your credit scores.

Why is my credit score going down when I pay on time? ›

Using more of your credit card balance than usual — even if you pay on time — can reduce your score until a new, lower balance is reported the following month. Closed accounts and lower credit limits can also result in lower scores even if your payment behavior has not changed.

What is the perfect credit utilization? ›

In reality, the best credit utilization ratio is 0% (meaning you pay your monthly revolving balances off). But keeping your utilization in the 1% to 10% range should help improve your credit score, as long as the other aspects of your score are within reason.

What is a good credit card utilization percentage? ›

Using no more than 30% of your credit limits is a guideline — and using less is better for your score.

What is a good credit Utilisation percentage? ›

Obviously, it's best to keep your credit utilisation ratio as low as possible. To keep it at a 'good' level though, you should be trying to keep it under 30%. If you're going over 50%, this would be considered a high credit utilisation ratio, and would likely be marked on your credit file.

What is 30% of the $300 credit limit? ›

You should try to spend $90 or less on a credit card with a $300 limit, then pay the bill in full by the due date. The rule of thumb is to keep your credit utilization ratio below 30%, and credit utilization is calculated by dividing your statement balance by your credit limit and multiplying by 100.

Is a 1% credit utilization ratio good? ›

A lower credit utilization ratio is better for your credit scores, but a little utilization is better than none at all. As a result, the best revolving credit utilization ratio may be 1%. However, you don't need a 1% utilization ratio to have an exceptional credit score.

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