Every spring, AP students ask the same two questions in the same breath: what score will I get, and what will my colleges give me for it? The answers live in two different places — College Board score distributions on one side, and thousands of individual college credit policies on the other. CreditAndGPA.com puts them on the same site: https://creditandgpa.com/
Score calculators for 38 AP subjects estimate your 1–5 score from your raw points, using each subject's published score distribution. They're labelled as what they are — modelled estimates with a margin, not leaked official curves, because College Board doesn't publish the real conversion tables. Alongside them sit the GPA tools: weighted and unweighted GPA, semester GPA, and the final-grade calculator that tells you what you need on the exam to keep the grade you want.
The second half is a searchable database of AP credit policies covering more than 2,000 colleges: the minimum score each school accepts for each subject, and what it grants — credit hours, course exemption, or nothing. A 3 earns real credit at one school and nothing at another, and a 5 sometimes buys no more than a 4. Checking before you register for the exam — or before you pick which scores to send — is the whole point.