Grade Calculator — Test Score % and Final Grade Needed
Turn correct answers into a percentage and letter grade, or work out the score you need on the final to hit your target. Free, instant, in your browser.
🔒 Calculated in your browser — nothing is uploaded.
Two calculators in one
Test score mode turns the number correct out of the total into a percentage and a letter grade — the classic "EZ grader" for marking quizzes and exams. Final grade needed mode answers "what do I need on the final?": enter your current grade, how much the final is worth, and your target, and it returns the exact score you need.
How the grades work
Percentages map to letters on the common US scale (A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60, otherwise F). The final-grade formula solves target = current × (1 − weight) + final × weight, and flags when a target is out of reach or already secured. Everything runs in your browser.
Frequently asked questions
How do I calculate a test grade?
Divide the number correct by the total questions and multiply by 100. 45 correct out of 50 is 90%, an A.
What score do I need on my final?
Enter your current grade, the final's weight and your target. The tool solves for the exact final score — and tells you if even 100% falls short.
Can I change the letter-grade cutoffs?
The tool uses the standard US bands. If your school uses different cutoffs, read the percentage and apply your own scale.