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.

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 I need to press calculate?

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

Test Grade Calculator - Full Guide

Q: 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.

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.

Custom Grading Scale

You can enter A, B, C, and D cutoffs from 0 to 100. The logic compares them in A/B/C/D order, so descending values are recommended; the page does not enforce their order. A result below D is F.

How the Calculation Works

First, the page calculates and rounds the percentage to two decimal places:

wrong-answer mode: (total questions - wrong answers) / total questions × 100
correct-answer mode: correct answers / total questions × 100
points mode: points earned / total points × 100

It then applies the current cutoffs in order: >= A gives A, >= B gives B, >= C gives C, >= D gives D, and anything lower gives F. The displayed GPA uses a fixed mapping: A=4.0, B=3.0, C=2.0, D=1.0, F=0.0.

This GPA is a quick-reference conversion. It does not include A-, B+, or other plus/minus grades and does not represent a particular school's official GPA policy.

Example

Choose wrong-answer mode and enter total questions 50 and wrong answers 7:

correct answers: 50 - 7 = 43
percentage: 43 / 50 × 100 = 86%
with the default cutoffs: letter grade B, GPA 3.0

If you change only the A cutoff from 90 to 85, the percentage remains 86%, but the letter grade becomes A and the GPA becomes 4.0. Cutoffs change the classification, not the raw percentage.

How to Understand the Result

Percentage: the core score share produced by all three modes.
Letter grade: the A–F bucket selected by the current cutoffs.
GPA (4.0 scale): the fixed quick-reference value mapped from that letter.
Breakdown: question modes show correct, wrong, and total questions; points mode shows points earned and points lost.

Results update live as you edit inputs, so no separate calculate button is required.

Common Mistakes

Entering more wrong or correct answers than total questions.
Entering negative points or points above the maximum.
Expecting a cutoff change to change the percentage.
Expecting plus/minus grades, weighted items, curves, pass/fail rules, class rank, or an institution-specific GPA.

FAQ

Which scoring modes are supported?

Wrong answers, correct answers, and total points/points earned are supported.

Can it calculate plus and minus grades?

No. The page has five buckets: A, B, C, D, and F.

Do custom cutoffs change the percentage?

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

Why does points mode not show total questions?

Because points mode uses total points and points earned only; the page does not infer a question count.

Is this suitable for official academic grading?

Only as a quick helper. Official grades should follow the rules published by the school, course, or instructor.

Notes

The current implementation handles one test's three raw-input modes. It does not handle weighted assessments, curves, partial credit, plus/minus grades, pass/fail systems, class rank, trend analysis, or institution-specific GPA rules. Confirm the course policy before using a result for an official decision.

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Test Grade Calculator Guide

Full Guide