A credit score is one small number with an outsized effect — it shapes whether you are approved to borrow and what interest rate you pay. Here is what the number actually measures, the five things that move it, and how to keep it healthy.
A credit score is a three-digit number — most commonly on a 300 to 850 scale — that summarizes how you have handled borrowed money. It is generated from the information in your credit reports, the files that the major credit bureaus keep on your borrowing history.
Lenders use it as a fast, consistent shorthand for risk. When you apply for a credit card, an auto loan, or a mortgage, the lender cannot know you personally, so it leans on the score to estimate one thing: how likely you are to pay the money back. A higher score signals lower risk.
That single number does real work in your financial life. It influences whether an application is approved at all, and — just as importantly — the interest rate you are offered. The same loan can cost dramatically more or less over its life depending on the rate, and the rate is shaped heavily by your score. Understanding what moves the number is the first step to keeping it in your favor.
Credit scores are calculated from five categories of information. They are not weighted equally:
The takeaway is simple: the first two — pay on time, keep balances low — do most of the work. Get those right and the rest tends to follow.
On the common 300 to 850 scale, lenders loosely group scores into bands. Scores in the mid-600s and below are generally seen as fair or poor; the upper 600s through the mid-700s are considered good; and scores above the mid-700s are very good to excellent. The exact cutoffs vary between lenders and scoring models, so treat the bands as a guide, not a hard rule.
You should know your number. Many banks and credit card issuers show your score for free, and several free services let you monitor it over time. Separately, you are entitled to free copies of your credit reports — the underlying data — from the major bureaus. Reviewing your reports matters because an error or a sign of fraud on a report can drag your score down through no fault of yours.
One myth worth retiring: checking your own score does not lower it. That is a “soft inquiry,” which has no effect. Only a “hard inquiry” — when a lender checks your credit for an application — can cause a small, temporary dip.
A credit score is a three-digit number that summarizes how you have handled borrowed money. It is calculated from the information in your credit reports and helps lenders estimate how likely you are to repay what you borrow. The most widely used scores run from 300 to 850, and a higher number signals lower risk to a lender.
Payment history and credit utilization carry the most weight. Paying every bill on time and keeping the balances on your revolving accounts low relative to their limits are the two habits that move a score the most. Length of credit history, credit mix, and recent applications for new credit also contribute.
On the common 300 to 850 scale, scores in the mid-600s and below are generally considered fair or poor, the upper 600s to mid-700s are good, and scores above the mid-700s are very good to excellent. Higher scores generally unlock approval for more products and better interest rates.
Many banks, credit card issuers, and free services show your score and let you monitor it. You are also entitled to free copies of your credit reports from the major credit bureaus, which is where the data behind the score lives. Checking your own score does not lower it.
Now that you know what the number measures, these guides help you act on it:
