Free credit utilization calculator — see how your credit card utilization affects your credit score
This free credit utilization calculator (also a credit card utilization calculator) shows you exactly how your credit card balances affect your credit score. Credit utilization is the #1 factor after payment history when it comes to your FICO score.
Lowering your credit utilization from 50% to under 10% can boost your credit score by 50+ points in just a few months!
Credit utilization ratio = Your credit card balances ÷ Your total credit limits.
It measures how much of your available credit you're using. Creditors want to see that you're not maxing out your cards.
Your FICO credit score is made up of 5 factors:
Credit utilization is 30% of your score — that's huge! And the best part: it's the easiest factor to improve. Unlike payment history (which takes years of on-time payments), you can fix your utilization in a few months.
There are two ways credit utilization is calculated:
Both matter! Even if your overall utilization is low, having one card maxed out will still hurt your score. Try to keep every individual card under 10-30%.
Under 30% is good. Under 10% is excellent and will maximize your credit score. Anything over 30% starts hurting your score. The very best scorers (800+) usually have utilization under 1-5%.
Yes! Your credit card issuer reports your balance to the bureaus once a month (usually on your statement date). Paying your bill before the statement date keeps your reported balance low. This trick is called "credit card floating."
If your utilization drops from 50% to under 10%, you could see a 30-60 point increase in just 2-3 months. That's the fastest way to boost your credit score. It's much faster than waiting for old inquiries to fall off.
No! You don't need to carry a balance to build credit. Paying your statement balance in full every month is the best thing you can do. Your score will be just as good (or better) at 0% utilization.
It depends. A "hard pull" will drop your score by 5-10 points for a few months. But a "soft pull" (which many issuers offer for pre-qualification) won't hurt your score at all. And the long-term benefit of lower utilization usually outweighs the short-term dip.
Scores 800+ usually have utilization under 5%. The sweet spot is 1-10%. Interestingly, 0% utilization is slightly worse than 1-5% — the bureaus like to see that you're using credit responsibly and paying it off.
30% is the threshold — anything above starts hurting your score. But for the best score, aim for under 10%. Many people keep their cards at 1-3% by paying twice a month.