Lenders read a credit score as a fast summary of how someone handles borrowed money, and this page lets a person rate themselves against the five factors that build one. Five self-assessments in, and it returns a rough range rather than pretending to a number only a bureau holds.
The five factors and their 35/30/15/10/10 weights are FICO’s own published description, anchored here to the official page rather than invented, and the banding from each rating to points is this page’s transparent model. There is no account and no report is pulled, and nothing you answer leaves your browser.
Treat the range as an estimate from the numbers you enter, not a real FICO score. A real score is computed from the entire credit report through a proprietary model, so every account, balance, inquiry and late mark is outside these five buckets, and two people who answer the same way can score differently. Different FICO versions, and the separate industry scores a lender may pull, weight the same factors differently, so identical habits can land in a different place. Check your actual reports for the figure a lender would see.
The four bands this page maps each rating onto are its own four-step approximation of the 350–850 scale, chosen to be wide enough that a self-assessment lands inside them and narrow enough that the direction of a change is visible. A score simulator run by a card issuer starts from your real report and changes one variable at a time, which is more precise but needs the report; this page starts from five answers you already know, which is less precise but works before you have looked anything up. Use it to decide what to check, then check it.