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Formulexa
TEST PERCENTAGE CALCULATOR

Easy Grader

Turn wrong or correct answers into an instant percentage score and generate a complete grading table for up to 500 questions.

Start Grading NowSee How It Works

Simple grading

Two fields, one instant score

Instant results

Recalculates as you type

Private by default

Nothing leaves your device

Easy Grader test score calculation showing test results sheet, A+ badge, score meter, and learning books

Easy Grader

Quick test score & table generator
Enter the total questions and either wrong or correct answers. The percentage is policy-neutral unless you add your own letter-grade thresholds.
Count answers by

Results update instantly — transparent formulas, clear results.

Your results will appear here

Fill in your question count and select “Calculate score” to see your percentage and grading table.

GRADING LOGIC

How does the Easy Grader work?

This test grade calculator uses whole question counts. Enter the total and either wrong or correct answers to find the test percentage, then use the grading table to check every possible score for the same quiz or exam.

Formula

Correct = Total − Wrong. Percentage = (Correct ÷ Total) × 100.

Test grading chart

See a complete grade percentage chart for your test length, from zero wrong to all wrong.

Worked example

40 questions, 6 wrong → 34 correct, 85%.

Formula

Correct answers = total questions − wrong answers.

Percentage = (correct answers ÷ total questions) × 100

Step-by-Step Scenario

Worked example: 40-Question Exam

Whole-Question Counts

Question counts must be whole numbers between 1 and 500. Letter grade boundaries vary across school districts and syllabi, so the percentage score is calculated with complete mathematical precision.

Total Questions

40

Exam size
Wrong Answers

6

Deductions
Correct Answers

34

40 − 6
Final Grade Score

85.0%

Solid Pass (B)
1. Correct Count:40 − 6 = 34
2. Percentage Formula:(34 ÷ 40) × 100 = 85.0%

What the result means

  • Your percentage shows how many questions you answered correctly.
  • The grading table below shows every possible score for the same test length.
  • Rounding only affects the display — full precision is used internally.

Easy Grader vs Grade Calculator

  • Easy Grader: total questions, wrong answers, percentage, and a complete grading table.
  • Grade Calculator: weighted categories, coursework, and an overall current grade.
  • Use the right tool for how your work is actually scored.

Why this calculator is reliable

Built on transparent formulas, carefully tested examples, and clear assumptions so you can trust the results.

Read calculation methodology

  • Documented formulas

    We use proven math and clearly stated methods.

  • Fast classroom use

    Designed for quick, everyday grading tasks.

  • Transparent method

    Step-by-step logic with no hidden adjustments.

  • No hidden adjustments

    What you enter is what we use — nothing else.

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How Weighted Grades Work

Understand weights, categories, and how final grades are calculated.

Read the guide

FAQ

Frequently asked questions

Formula behavior follows our calculation methodology. Last reviewed: August 15, 2026.