Test Grade Calculator
The simplest grade question: you got 43 out of 50 — what is that? This calculator converts correct ÷ total into a percentage and letter grade instantly, and shows what a curve or dropped question would do.
It's also the honest way to check a teacher's arithmetic before contesting a score.
Does your final have several parts (e.g. multiple choice + essay)? Enter each part, then your course info below.
Is your class graded by total points instead of percentages? Enter your points so far.
Enter each category's weight and your score in it. Leave a score blank if it's not graded yet.
How to read a test score
43/50 = 86% = B on the common ± scale. Each question was worth exactly 2% of your grade. That per-question value is worth knowing before a test: on a 25-question test each miss costs 4 points — there's no partial credit math to hide behind.
If your teacher curves
Two classic curves: "highest score becomes 100" (add the difference between 100 and the top score to everyone) and square-root scaling (√score × 10). Ask which method applies before calculating your hope — they produce very different numbers.
Frequently Asked Questions
What letter grade is 42 out of 50?
42/50 = 84% — a B on the common ± scale (B− starts at 80, B at 83, B+ at 87). Enter your exact numbers above for any total.
What is my grade if I got 18 out of 20?
90% — an A− on the ± scale (an A at schools using a flat 90=A cutoff).
How many points is each question worth?
100 ÷ number of questions. 40 questions = 2.5 points each; 25 questions = 4 points each. Quick reality check: three careless misses on a 25-question test is 12 points — a full letter.
Can I dispute a test grade?
Yes — start by recalculating: points earned ÷ points possible. If your number differs from the posted one, bring both to your teacher; arithmetic errors get fixed. Judgment-call regrades are a separate, softer conversation.