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Quick guide

What This Calculator Does

This test grade calculator converts one test or assignment's raw input into a percentage, an A–F letter grade, and a fixed 4.0-scale GPA reference. It offers three separate input styles: total questions with wrong answers, total questions with correct answers, or total points with points earned.

It is designed for quick estimates, score checks, and cutoff what-if tests. It is not a school registrar and does not infer an institution's official grading policy.

When to Use It

  • You know the total questions and wrong answers.
  • You know the correct-answer count and want a quick percentage.
  • You have points earned and maximum points.
  • You want to test how changing an A/B/C/D cutoff changes the letter grade.

For multiple assessments, weighted coursework, a required final score, or a school-specific GPA, use a calculator that matches those rules or follow the course policy directly.

Inputs Explained

Calculation Mode

  • wrong-answers: enter total questions and wrong answers.
  • correct-answers: enter total questions and correct answers.
  • points: enter total points and points earned.

Question modes require total questions greater than 0; wrong and correct answers must stay between 0 and the total. Points mode requires total points greater than 0; points earned must stay between 0 and the total.

Read the full guide

Frequently Asked Questions

Which grading methods does this tool support?

The current page supports wrong-answer mode, correct-answer mode, and points mode.

Can I customize the letter-grade cutoffs?

Yes. The page lets you edit the A, B, C, and D thresholds, while F stays below D.

How is GPA assigned?

The current implementation uses a fixed mapping of A=4.0, B=3.0, C=2.0, D=1.0, and F=0.0, with no plus/minus grades or institution-specific rules.

Do custom cutoffs change the percentage?

No. The percentage comes from the question counts or points; cutoffs only change the letter-grade and GPA bucket.

Do I need to press calculate?

No. The page updates live as you change the inputs.

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Test Score Calculator

Calculate a percentage, A–F letter grade, and fixed 4.0-scale GPA from wrong answers, correct answers, or points

Calculation mode

Input parameters

Scoring criteria

%
%
%
%

Calculation results

100%
Letter grade: A
GPA (4.0 scale): 4.0
Correct answers
20
Wrong answers
0
Total number of questions
20