FinalGrade is a free final-exam grade calculator for students: current grade, exam weight and target in — the exact score you need out, plus a letter-boundary table, a reverse mode, multi-assessment math and a full weighted-category breakdown. Everything runs in English and Spanish.

Why this site exists

Every finals week, millions of students ask the same question — “what do I need on the final?” — and most answer it with vibes instead of arithmetic. The formula is one line (required = (target − current × (1 − weight)) ÷ weight), but the honest answers it produces are routinely uncomfortable: a 110 means the A is gone, a −30 means the pass is already banked. Most calculators online quietly cap or hide those cases. This one leads with them, because “the math says no” is exactly the information that changes how you spend a study week.

Where the numbers come from

The three letter scales (standard A− = 90, strict 7-point A− = 93, lenient A− = 85) are the most common published US conventions — the same tables used across our sibling grading tools. The required-score formula is plain weighted-average algebra; nothing is approximated, estimated or “AI-assisted.” Every rule the calculator applies is printed on the page next to the controls.

One honest caveat: grading policy is local. Dropped lowest scores, replacement clauses, curves and extra credit all change the real weights — when your syllabus and this tool disagree, your syllabus wins. The site tells you the math; your instructor tells you the policy.

How the site works

Everything runs in your browser with plain JavaScript — no accounts, no uploads, no server-side calculation, and nothing you type ever leaves your device. The page works offline once loaded, in both languages.

Who maintains it

FinalGrade is maintained by a small independent team that builds focused utility sites — including a GPA calculator and an exam grading chart tool in the same family. Found a convention your school defines differently, or a case the calculator handles wrong? Contact us — corrections from students and instructors are the emails we answer first.