GradeCentric

Easy Grader

Quick grade calculator for tests, quizzes, and exams — total questions in, percent and letter out.

Resulting Grade
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Quick start

How to use the Easy Grader

  1. 1

    Enter total questions

    How many questions are on the test, quiz, or assignment (1–500).

  2. 2

    Enter questions wrong

    Optional. Drop in the number missed and the calculator shows the result instantly. Leave blank to just see the full lookup table.

  3. 3

    Switch scales if needed

    Toggle the AB/BC scale (Wisconsin) or half-points mode from Settings if those match your grading style.

  4. 4

    Use the lookup table

    Below the result, every possible wrong-count is listed with its percent and letter grade — handy for grading a whole stack.

How the Easy Grader works

The Easy Grader computes a percentage from the number correct out of total questions, then maps that percent to a letter grade using your active scale.

It also generates a full lookup table for every possible wrong-count from 0 to your total — useful for teachers grading a stack or students wondering what each score would be.

Formula

percent = (total − wrong) / total × 100

Where

total
number of questions on the test or assignment
wrong
how many were missed

FAQ

Common questions

Can teachers use this for grading?
Yes — it's one of the most common use cases. The lookup table is especially useful for grading a stack of papers without recomputing percentages each time.
What's the AB/BC scale?
Used by some Wisconsin schools — adds AB (between A and B) and BC (between B and C) letter grades. Toggle it in Settings to switch the active scale.
What does the half-points toggle do?
Generates the lookup table in 0.5 increments instead of 1, so it covers half-point deductions. Useful when you take off half a point for partial credit.
Can I customize the threshold for each letter grade?
Yes — click Settings and adjust the minimum percent for each letter (for example, change A from 90% to 93% if your school uses tighter thresholds).
Why does the result only show when I fill both fields?
Without “questions wrong” the calculator doesn't have enough info for a single result — but the lookup table below still shows every possibility based on your total.

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