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 Grade Scale 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, which is 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 built with teachers in mind. 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, it adds AB (between A and B) and BC (between B and C) letter grades. Toggle it in the Grade Scale dialog 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, on the standard scale. Click Grade Scale and adjust the minimum percent for each letter (for example, raise A from 93% to 95% 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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