Enter the total number of questions
Type how many questions the test, quiz, or worksheet had. The grading table below the result rebuilds itself for that length.
Easy Grader & Grade Calculator
Enter how many questions the test had and how many were missed — get the percentage score, the letter grade, and the full grading table instantly. Points mode included. No signup, no email.
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Your test
Type the numbers — the score and letter grade update instantly. Nothing is saved or sent anywhere.
Fill in the fields to see the score and letter grade.
Grading table — 0 to missed
Every score, ready to hand out or pin up.
| Missed | Correct | Score | Grade |
|---|---|---|---|
| % |
This is a free easy grader for teachers and students: enter the number of questions and how many were missed, and the score, letter grade, and full grading table appear instantly. Switch to Points earned for assignments where questions aren't worth the same. Everything runs in your browser — nothing is uploaded or saved.
How to use the easy grader
Enter the number wrong or missed
The percentage score and the letter grade update as you type — no button to press, no page reload.
Read the grade, or switch to points mode
The result shows the percentage and the letter grade on the scale you picked. For assignments with custom point values, switch to the Points earned mode and enter points earned and points possible instead.
Test, quiz, and assignment grading
The same easy grader covers every graded item on your desk. What changes is which mode you reach for.
Test grade calculator
Unit tests and exams are usually a flat list of equally weighted questions, so missed-question mode is the fastest path: type the question count once, then read the letter grade for every possible number wrong straight off the grading table.
Quiz grade calculator
Short quizzes punish each mistake harder than long tests do. One wrong answer on a 10-question quiz costs 10 points; the same mistake on a 50-question test costs 2. Scan the table before you set the length of a low-stakes quiz.
Assignment grade calculator
Essays, labs, and projects are graded out of a rubric total rather than a question count. Switch to points mode and the calculator returns the same percentage and letter grade — 17 out of 20 is 85%, a B on either scale.
Grading scales and points-based grading
Two ways schools turn work into a grade — the calculator handles both.
Grading scale
The default is the standard U.S. scale. Schools that award pluses and minuses split those same ranges further — pick Plus / minus scale in the selector and the letter column updates everywhere, including the grading table. Your school's handbook is the source of truth if its cutoffs differ.
- A — 90% and up
- B — 80–89%
- C — 70–79%
- D — 60–69%
- F — below 60%
Points-based grading
Points-based grading skips percentages until the end: every assignment carries a point value, and the course grade is total points earned over total points possible. A 5-point homework visibly matters less than a 100-point final. Points mode above works for a single assignment; for the whole course, add up every category first.
- 5-point homework
- 20-point quiz
- 50-point lab
- 100-point final
Grade calculator formula
The calculator runs two formulas, one per mode. Points mode is the general case — every score is points earned over points possible:
Grade percentage = (points earned / total points) × 100Missed-question mode is the same formula with one assumption baked in: every question is worth the same. Instead of counting points, it counts the questions you got right:
Grade percentage = ((total questions - missed questions) / total questions) × 100Worked example, missed-question mode: a 25-question quiz with 3 wrong is (25 − 3) ÷ 25 × 100 = 88%, a B on the standard scale.
Worked example, points mode: 42 points out of 50 is 42 ÷ 50 × 100 = 84%, also a B. Use points mode whenever questions are worth different amounts — a 5-point short answer next to 1-point multiple choice.
More EduSolver calculators
Grading one test is one piece of the picture. If you're tracking a whole course or a whole transcript, these free tools pick up where the easy grader stops:
- Working out what score you need on the exam that closes the course? Use the final grade calculator.
- Turning a term's letter grades into a 4.0 number is the job of the GPA calculator.
- Honors, AP, and IB courses carry extra grade points — the weighted GPA calculator handles the bonus.
- Adding this term to everything already on your transcript is what the cumulative GPA calculator is for.
- Browse more student calculators and study tools in the EduSolver directory.
Grading scale chart
Most U.S. schools grade on the standard A/B/C/D/F scale. Districts that award pluses and minuses split the same ranges into finer bands — both are in the calculator's scale selector.
Standard scale
| Percentage | Letter grade |
|---|---|
| 90–100% | A |
| 80–89% | B |
| 70–79% | C |
| 60–69% | D |
| Below 60% | F |
Plus / minus scale
| Percentage | Letter grade |
|---|---|
| 97–100% | A+ |
| 93–96% | A |
| 90–92% | A− |
| 87–89% | B+ |
| 83–86% | B |
| 80–82% | B− |
| 77–79% | C+ |
| 73–76% | C |
| 70–72% | C− |
| 67–69% | D+ |
| 63–66% | D |
| 60–62% | D− |
| Below 60% | F |
Easy grader chart for a 20-question test
The chart below is the calculator above, pre-computed for the most common quiz length. Change Total number of questions in the calculator to get the same chart for any test.
| Missed | Correct | Score | Grade |
|---|---|---|---|
| 0 | 20 | 100% | A |
| 1 | 19 | 95% | A |
| 2 | 18 | 90% | A |
| 3 | 17 | 85% | B |
| 4 | 16 | 80% | B |
| 5 | 15 | 75% | C |
| 6 | 14 | 70% | C |
| 7 | 13 | 65% | D |
| 8 | 12 | 60% | D |
| 9 | 11 | 55% | F |
| 10 | 10 | 50% | F |
| 11 | 9 | 45% | F |
| 12 | 8 | 40% | F |
| 13 | 7 | 35% | F |
| 14 | 6 | 30% | F |
| 15 | 5 | 25% | F |
| 16 | 4 | 20% | F |
| 17 | 3 | 15% | F |
| 18 | 2 | 10% | F |
| 19 | 1 | 5% | F |
| 20 | 0 | 0% | F |
Other student calculators
Frequently Asked Questions
What is an easy grader?
An easy grader (also called an EZ grader or quick grader) is a tool that turns "how many questions did they miss" into a percentage score and a letter grade. It replaces the paper grading wheels teachers used to carry: instead of looking up a row on a printed chart, you enter the question count once and read the whole scale off the table. This one also handles points-based grading for assignments where the questions aren't worth the same.
How do I calculate a test grade?
Divide the number of correct answers by the total number of questions and multiply by 100. On a 20-question test with 2 wrong, that's (20 − 2) ÷ 20 × 100 = 90%, an A on the standard scale. If the questions carry different point values, divide points earned by total points instead — the calculator above does both.
How many points is each question worth?
On an equally weighted test, each question is worth 100 ÷ (total questions) percent. A 20-question test is 5 points per question, a 25-question test is 4 points, a 40-question test is 2.5 points. Short quizzes are therefore much harsher per mistake than long tests — one wrong answer on a 10-question quiz costs a full 10 points. If your test mixes 1-point multiple choice with 5-point short answers, use points mode rather than the question count.
Can I use this for quizzes and assignments?
Yes. Quizzes work exactly like tests — enter the question count and the number missed. Assignments graded against a rubric (essays, labs, projects) work better in points mode: enter points earned and points possible, and you get the same percentage and letter grade. Homework, worksheets, lab reports, and participation scores all fit one of the two modes.
What letter grade is my percentage?
On the standard U.S. scale: 90–100% is an A, 80–89% is a B, 70–79% is a C, 60–69% is a D, and below 60% is an F. Schools that award pluses and minuses split those bands further — 97%+ is an A+, 93–96% an A, 90–92% an A−, and so on down. Switch the scale selector in the calculator to see your score on either one. Your school handbook wins if its cutoffs are different.
Is this grade calculator free?
Yes — free, with no account, no email, and no limit on how many tests you grade. The math runs entirely in your browser, so nothing you type is uploaded, logged, or saved anywhere.
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