Credit Utilization Calculator
Your credit utilization ratio is the share of your available revolving credit you are currently using. Enter one combined total or break it out card by card to see your overall ratio, your highest single-card ratio, and exactly how much to pay down (or how much higher a limit you need) to reach a target like 30% or 10%.
Formula
Worked example
With $2,400 in balances against a $10,000 total limit: 2,400 / 10,000 = 0.24, and 0.24 x 100 = 24% utilization. To hit a 10% target you would pay down 2,400 - (10,000 x 0.10) = $1,400, or raise the total limit to 2,400 / 0.10 = $24,000.
What credit utilization measures
Credit utilization is the ratio of the revolving balances you owe to the total credit limit available to you, expressed as a percentage. It is calculated by dividing your combined card balances by your combined credit limits and multiplying by 100. Because it is one of the most heavily weighted factors in common credit scoring models, the ratio gives a quick read on how much of your available credit you are leaning on at any moment.
Overall ratio versus per-card ratio
Scoring models look at two things: your overall utilization across every revolving account, and the utilization on each individual card. Switch this calculator to card-by-card mode to enter up to five cards. It sums the balances and limits for your overall ratio and also reports your highest single-card ratio. One nearly maxed card can drag your score even when your overall ratio is comfortable, so the per-card view often reveals a problem the combined total hides. Spreading a balance across cards or paying down the highest one first can both help.
Solving for a target: pay-down or limit increase
Pick a target ratio, commonly 30% or the ideal sub-10%, and the calculator solves the two ways to reach it. The pay-down figure is your current balance minus the balance the target allows on your existing limit. The limit-needed figure is the total credit limit that would put your current balance at the target without paying anything, which is what a credit limit increase across your cards would have to add up to. Paying down before the statement date is the most direct lever, since utilization is recalculated each time a card reports to the bureaus.
How to improve your ratio
You can lower utilization in two ways: reduce the numerator by paying down balances, or raise the denominator by requesting a higher credit limit or keeping older accounts open. Spreading spending across cards, making an extra mid-cycle payment, and avoiding closing unused cards all help. This tool gives an estimate based on the figures you enter; your reported ratio depends on each card issuer reporting date, and any major credit decisions should be confirmed with your lender or a qualified financial professional.
Credit utilization bands
| Utilization | Rating | What it signals |
|---|---|---|
| 0-10% | Excellent | Light use of available credit; ideal for scoring |
| 11-30% | Good | Within the widely cited 30% guideline |
| 31-50% | Elevated | Above guideline; may start to weigh on scores |
| 51-100% | High | Heavy reliance on available credit |
General guideline ranges, lower utilization is consistently better.
Frequently asked questions
What is a good credit utilization ratio?
Most guidance suggests keeping utilization at or below 30%, and under 10% is even better. There is no benefit to using more of your limit, so the lower your ratio, the better it generally looks to scoring models.
How is credit utilization calculated?
Divide your total balances by your total credit limit and multiply by 100. For example, $2,400 in balances on a $10,000 limit is 2,400 / 10,000 x 100 = 24%. In card-by-card mode this calculator sums every card first, then divides.
Does per-card utilization matter or only the overall ratio?
Both matter. Scoring models look at your overall utilization and at the highest individual card. A single nearly maxed card can weigh on your score even when your combined ratio is low, which is why this calculator also reports your highest single-card utilization.
How much should I pay down to reach my target?
Set a target ratio and the calculator subtracts the balance that target allows on your current limit from what you owe. It also shows the higher total limit that would reach the target without paying anything, so you can compare paying down against requesting a limit increase.
Does paying off my balance help right away?
Utilization is recalculated each time your cards report to the credit bureaus, so paying a balance down before the statement closes can lower your reported ratio within that cycle without harming your credit history.