An easy grader (also called a grade scale generator) is a tool teachers use to quickly produce a complete answer key showing the letter grade for every possible number of correct answers on a test. Instead of doing the math manually for each score, you enter the total number of questions, pick your grading scale, and get an instant color-coded table — perfect for handing back papers fast.
Test Settings
Enter a number from 1 to 200
Set the minimum percentage for each letter grade:
Quick Score Lookup
Grade Scale Table
Grade Scale
How to Use the Easy Grader
Grading a stack of papers by hand requires calculating the percentage and letter grade for every possible score, which is tedious and error-prone. This free easy grader does all the work for you — enter the total number of questions, choose your scale, and instantly get a complete color-coded grade table ready to print and post.
Step 1: Enter Total Questions or Points
Type the total number of questions (or total points) in the test into the "Total Questions / Points" field. The tool supports values from 1 to 200. For a 25-question quiz, enter 25. For a 100-point essay rubric, enter 100. The table updates instantly as you type.
Step 2: Choose a Grading Scale
Select one of the three grading scale presets. The Standard scale uses A=90%, B=80%, C=70%, D=60% — the most common in US schools. The Strict scale uses higher thresholds: A=93%, B=85%, C=77%, D=70%. If your school uses different cutoffs, choose Custom and enter your own minimum percentage for each letter grade.
Step 3: Read the Grade Scale Table
The table shows every possible score. Each row displays the number of questions wrong, the number correct, the percentage, and the corresponding letter grade. Rows are color-coded for instant visual scanning: green for A, blue for B, yellow for C, orange for D, and red for F. The stat cards below the table show how many questions fall into each grade band.
Step 4: Use Quick Score Lookup
To check a single paper quickly, use the Quick Score Lookup panel. Enter either the number correct or the number wrong and instantly see the percentage and letter grade without scrolling the full table. This is ideal for grading papers one at a time at your desk.
Step 5: Print the Grade Scale
Click "Print Scale" to open a clean, print-friendly version of the table. The tool interface disappears so only the grade scale table goes to paper or PDF. Many teachers print this and attach it to the answer key, or post it in the classroom so students can self-check their scores. The printed table includes the test name, total questions, and the grading scale used.
FAQ
Is this easy grader tool free to use?
Yes, this grade scale generator is completely free with no ads, no signup, and no limits. All calculations run locally in your browser. You can use it anytime, even offline after the page loads.
Is my data private when I use this tool?
Absolutely. Everything runs entirely in your web browser using client-side JavaScript. No scores, names, or grade data are ever sent to a server. Your information stays completely private on your device.
How does the grade scale generator work?
Enter the total number of questions or points on the test, choose a grading scale preset, and the tool instantly generates a table showing every possible score from 0 wrong to all wrong. Each row shows the number wrong, number correct, percentage, and the letter grade with color coding.
What grading scale presets are available?
The tool includes three presets: the standard 10-point scale (A=90%, B=80%, C=70%, D=60%), the strict scale (A=93%, B=85%, C=77%, D=70%), and a custom mode where you set each letter grade threshold manually. You can also print the grade scale table directly from your browser.
Can I use custom grade thresholds?
Yes. Select the Custom preset and enter your own percentage cutoffs for each letter grade (A, B, C, D). The grade table and quick lookup update instantly as you type. This is useful for teachers who use non-standard grading curves.
What is the quick score lookup for?
The quick score lookup lets you instantly check any single score without scrolling through the full table. Enter the number of questions correct (or wrong) and it immediately shows the percentage and letter grade. Useful for grading individual papers on the fly.
Can I print the grade scale table?
Yes. Click the Print Scale button to open a print-friendly version of the grade table. The tool UI and navigation are hidden in print mode so only the clean table goes to paper or PDF. Many teachers print this and post it in the classroom.
How many questions or points does the tool support?
The tool supports any total from 1 to 200 questions or points. For tests with more than 50 questions, only rows where the score changes letter grade are shown in a compact view, with the option to expand the full table.