Tap +/− between papers — the score follows instantly.

Score

Enter the number of questions to start grading.

Letter grade
Correct answers

Test Grade Calculator

Grade a stack of tests fast: questions, number wrong, score and letter — with the full chart.

Grading a stack of papers

Type the number of questions once. From there it's one tap per paper: the +/− stepper moves the wrong-answer count and the score follows instantly, and the chart underneath shows every possible score for this test — so after the first paper you often don't need the inputs at all.

Score % = (questions − wrong) ÷ questions × 100
40 questions, 3 wrong: (40 − 3) ÷ 40 = 92.5% — an A− on the typical scale.

The chart is the tool

Old-school cardboard EZ graders worked exactly this way: set the total, read the column. The chart here is the same idea with the letter grade attached — print it or keep the phone propped up while you work through the pile. Change the question count and the whole chart re-computes.

Borderline scores

An 89.5 is not “basically an A−” — it's an 89.5, and whether it rounds up is your policy, not the calculator's. The score shown is exact to one decimal so you can apply your own rounding rule consistently, which is the part students actually notice. The letters come from the standard scale on the grading scale page; if your school's bands differ, the letters here will too — they are read from the same table.

Frequently asked questions

Can it handle half-point deductions?Yes — type 2.5 into the wrong-answers box. The stepper moves in whole questions, but the box takes any decimal.
What letter is 85%?On the typical US scale, a B (83-86). The chart column shows the letter for every score on your specific test, read live from the same scale table the whole site uses.
Letter thresholds and passing lines differ between schools — your syllabus always wins. This calculator assumes no dropped scores or replacement policies unless you model them yourself.
Written by The Editorial TeamUpdated July 17, 2026 · Scale sources are cited on every thresholdHow we research & review · About our team