Grading Chart — Free Printable Grading Scale Chart (PDF)
An EZ grader chart for every test from 5 to 100 questions: type a score for an instant grade, compare test sizes, then print or download the PDF
Jump to your test size — each button opens a full grade chart with every score, the pass mark, plus/minus grades and borderline scores:
Grading Scale Chart: Percentage to Letter Grade
This is the standard grading scale chart used in most U.S. schools. The plus/minus column is the scale the chart above and the PDF use; the plain column is the simpler A–F scale many schools use instead.
| Letter grade | Percentage | Plain A–F scale | GPA (4.0) |
|---|---|---|---|
| A+ | 97–100% | A | 4.0 |
| A | 93–96% | A | 4.0 |
| A− | 90–92% | A | 3.7 |
| B+ | 87–89% | B | 3.3 |
| B | 83–86% | B | 3.0 |
| B− | 80–82% | B | 2.7 |
| C+ | 77–79% | C | 2.3 |
| C | 73–76% | C | 2.0 |
| C− | 70–72% | C | 1.7 |
| D+ | 67–69% | D | 1.3 |
| D | 63–66% | D | 1.0 |
| D− | 60–62% | D | 0.7 |
| F | Below 60% | F | 0.0 |
Plain scale: A = 90–100%, B = 80–89%, C = 70–79%, D = 60–69%, F = below 60%. For GPA conversions, see the GPA scale guide.
Grading Chart for 5 to 50 Questions
Find the number of questions across the top and the number of wrong answers down the side. Each box shows the exact score and the plus/minus letter grade. Click a test size for its full chart, or download the PDF for every size from 5 to 100.
| Wrong | 5 Q | 10 Q | 15 Q | 20 Q | 25 Q | 30 Q | 40 Q | 50 Q |
|---|---|---|---|---|---|---|---|---|
| 0 | 100% A+ | 100% A+ | 100% A+ | 100% A+ | 100% A+ | 100% A+ | 100% A+ | 100% A+ |
| 1 | 80% B− | 90% A− | 93.3% A | 95% A | 96% A | 96.7% A | 97.5% A+ | 98% A+ |
| 2 | 60% D− | 80% B− | 86.7% B | 90% A− | 92% A− | 93.3% A | 95% A | 96% A |
| 3 | 40% F | 70% C− | 80% B− | 85% B | 88% B+ | 90% A− | 92.5% A− | 94% A |
| 4 | 20% F | 60% D− | 73.3% C | 80% B− | 84% B | 86.7% B | 90% A− | 92% A− |
| 5 | 0% F | 50% F | 66.7% D | 75% C | 80% B− | 83.3% B | 87.5% B+ | 90% A− |
| 6 | — | 40% F | 60% D− | 70% C− | 76% C | 80% B− | 85% B | 88% B+ |
| 7 | — | 30% F | 53.3% F | 65% D | 72% C− | 76.7% C | 82.5% B− | 86% B |
| 8 | — | 20% F | 46.7% F | 60% D− | 68% D+ | 73.3% C | 80% B− | 84% B |
| 9 | — | 10% F | 40% F | 55% F | 64% D | 70% C− | 77.5% C+ | 82% B− |
| 10 | — | 0% F | 33.3% F | 50% F | 60% D− | 66.7% D | 75% C | 80% B− |
| 11 | — | — | 26.7% F | 45% F | 56% F | 63.3% D | 72.5% C− | 78% C+ |
| 12 | — | — | 20% F | 40% F | 52% F | 60% D− | 70% C− | 76% C |
| 13 | — | — | 13.3% F | 35% F | 48% F | 56.7% F | 67.5% D+ | 74% C |
| 14 | — | — | 6.7% F | 30% F | 44% F | 53.3% F | 65% D | 72% C− |
| 15 | — | — | 0% F | 25% F | 40% F | 50% F | 62.5% D− | 70% C− |
| 16 | — | — | — | 20% F | 36% F | 46.7% F | 60% D− | 68% D+ |
| 17 | — | — | — | 15% F | 32% F | 43.3% F | 57.5% F | 66% D |
| 18 | — | — | — | 10% F | 28% F | 40% F | 55% F | 64% D |
| 19 | — | — | — | 5% F | 24% F | 36.7% F | 52.5% F | 62% D− |
| 20 | — | — | — | 0% F | 20% F | 33.3% F | 50% F | 60% D− |
Shaded red boxes are an F (below 60%). Need another size, such as 35 or 45 questions? Use the size buttons above or type it into the interactive chart.
This page gives you free ways to grade a test: the quick grade calculator at the very top turns any "correct out of total" score into an instant grade — perfect if you just need one quick answer. The full EZ grader chart below it compares several test lengths side by side, which is faster when you're grading a whole stack of papers at once. Either way, you're using the same trusted grading scale. For custom grading scales, half points, bonus questions and whole-class grading, use the full EZ Grader calculator, which also works out weighted and final grades.
What Is an EZ Grader Chart?
An EZ grader chart is a reference tool used by teachers to quickly determine a student's grade based on how many questions they got wrong. Instead of calculating percentages from scratch for every paper, you simply look up the number of wrong answers in the chart and read off the corresponding score.
Here's the basic formula behind every ez grader chart:
So if a student answers 27 out of 30 questions correctly, their score is (27 ÷ 30) × 100 = 90%, which is an A on a plain scale (an A− on a plus/minus scale). The 30-question grade chart shows every other score on that test.
The grading chart does this lookup automatically — you don't need a calculator or scratch paper. That's the entire point.
Teachers use this tool for daily quizzes, weekly chapter tests, homework checks, and large unit exams. It works equally well whether you're holding a physical cardboard slide chart or using a free online grading calculator on your phone. The result is the same: fast, accurate, consistent grades with zero arithmetic stress.
History of the EZ Grader
The original EZ grader was invented by the Lishner Company (sometimes referenced as E-Z Grader Co.) based in Wisconsin. For most of the 20th century, it was a staple in every American classroom — a small, laminated cardboard slide chart that teachers kept in their desk drawers alongside their red pens.
The physical design was elegantly simple. The chart had a sliding window that aligned the number of questions on one axis with the number wrong on the other, revealing the percentage score in a cut-out window. No batteries. No internet. No math.
For decades, the physical e-z grader slide chart was considered the gold standard in US classrooms. It was cheap (under $10), durable if laminated, and could grade any quiz in under five seconds. If you went to school in the United States any time from the 1950s through the 2000s, your teacher almost certainly had one.
As classrooms moved online and teachers began working from phones and tablets, the tool made a natural transition to digital. Today, online grading calculators replicate — and in many ways surpass — the original, offering support for hundreds of questions, partial credit adjustments, and custom grading scales. But the core concept hasn't changed in 70 years: give teachers a fast, reliable way to convert wrong answers into grades.
How the EZ Grade Chart Works
The math behind the easy grader is simple, but understanding it clearly will help you use any version of the tool with full confidence.
The Two-Step Formula
Step 1: Subtract the number of wrong answers from the total questions to get the number correct.
Step 2: Divide correct answers by total questions, then multiply by 100.
Worked Example:
- Total questions: 40
- Wrong answers: 6
- Correct answers: 40 − 6 = 34
- Score: (34 ÷ 40) × 100 = 85% = B
That's it. The ez grader chart does this calculation for every possible combination of questions and wrong answers — pre-calculated and ready to look up instantly. See all 41 possible scores in the 40-question grading scale.
US Grading Scale
Most grading charts use the standard U.S. percentage scale: an A from 90% (93% for a full A on a plus/minus scale), a B from 80%, a C from 70% and a D from 60%, with anything below 60% an F. The grading scale chart near the top of this page lists every plus/minus grade. The printable tables further down use the plain A–F scale, so check which one matches your school's policy.
Why Short Tests Are More Sensitive
Here's something many teachers don't realize: the fewer questions on a test, the more each wrong answer hurts.
On a 5-question quiz, getting just 1 wrong drops the score to 80% — a B. On a 30-question test, 1 wrong answer still leaves the student at 97%. This means a grading chart for 5 questions behaves very differently from one for 50 questions, and you should always match your chart to the actual test length.
This sensitivity effect is one reason experienced teachers prefer longer assessments for high-stakes grades, while keeping short quizzes lower-stakes or using them purely for formative feedback.
EZ Grade Chart: Printable Reference Table
A ready-to-use, printable grading chart you can reference immediately. Find your total question count below, then find the row matching the number of wrong answers — the cell shows the grade. (Prefer an interactive version? Use the tool at the top of this page — it covers any question count and exports straight to print or PDF.)
10-Question Test
| # Wrong | % Score | Grade |
|---|---|---|
| 0 | 100% | A |
| 1 | 90% | A |
| 2 | 80% | B |
| 3 | 70% | C |
| 4 | 60% | D |
| 5+ | 50% or below | F |
See the full 10-question grading scale with plus/minus grades →
20-Question Test
| # Wrong | % Score | Grade |
|---|---|---|
| 0 | 100% | A |
| 1 | 95% | A |
| 2 | 90% | A |
| 3 | 85% | B |
| 4 | 80% | B |
| 5 | 75% | C |
| 6 | 70% | C |
| 7 | 65% | D |
| 8 | 60% | D |
| 9+ | 55% or below | F |
Full 20-question grade chart, including the grades that round up →
25-Question Test
| # Wrong | % Score | Grade |
|---|---|---|
| 0 | 100% | A |
| 1 | 96% | A |
| 2 | 92% | A |
| 3 | 88% | B |
| 4 | 84% | B |
| 5 | 80% | B |
| 6 | 76% | C |
| 7 | 72% | C |
| 8 | 68% | D |
| 9 | 64% | D |
| 10 | 60% | D |
| 11+ | 56% or below | F |
25-question grading scale: every score, the pass mark and plus/minus grades →
30-Question Test
| # Wrong | % Score | Grade |
|---|---|---|
| 0 | 100% | A |
| 1 | 97% | A |
| 2 | 93% | A |
| 3 | 90% | A |
| 4 | 87% | B |
| 5 | 83% | B |
| 6 | 80% | B |
| 7 | 77% | C |
| 8 | 73% | C |
| 9 | 70% | C |
| 10 | 67% | D |
| 11 | 63% | D |
| 12 | 60% | D |
| 13+ | Below 60% | F |
Open the complete 30-question grade chart →
40-Question Test
| # Wrong | % Score | Grade |
|---|---|---|
| 0 | 100% | A |
| 2 | 95% | A |
| 4 | 90% | A |
| 6 | 85% | B |
| 8 | 80% | B |
| 10 | 75% | C |
| 12 | 70% | C |
| 14 | 65% | D |
| 16 | 60% | D |
| 17+ | Below 60% | F |
See every score on a 40-question test, not just every second one →
50-Question Test
| # Wrong | % Score | Grade |
|---|---|---|
| 0 | 100% | A |
| 2 | 96% | A |
| 5 | 90% | A |
| 8 | 84% | B |
| 10 | 80% | B |
| 13 | 74% | C |
| 15 | 70% | C |
| 18 | 64% | D |
| 20 | 60% | D |
| 21+ | Below 60% | F |
Full 50-question grading scale with all 51 scores →
5-Question Grading Scale
| # Wrong | % Score | Grade |
|---|---|---|
| 0 | 100% | A |
| 1 | 80% | B |
| 2 | 60% | D |
| 3 | 40% | F |
| 4 | 20% | F |
| 5 | 0% | F |
5-question grading scale in full, including the grades a 5-question quiz can't reach →
Grade Charts for Every Test Length (5 to 100 Questions)
Every test length below has its own printable chart page on our grade calculator: each possible score as a percentage and letter grade, the pass mark, the plus/minus grades a test of that size can't reach, and the scores that change grade when you round. The tables show the key numbers at a glance; “Misses for an A” and “Misses for a B” use a plain scale (A from 90%, B from 80%).
Short quizzes and exit tickets (5 to 10 questions)
On a short quiz every question carries a lot of weight, so a single miss can move a student a full letter grade.
| Test | Per question | Pass (60%) | Misses for an A | Misses for a B |
|---|---|---|---|---|
| 5-question grading scale | 20% | 3 right | 0 (perfect score) | 1 |
| 6-question grading scale | 16.67% | 4 right | 0 (perfect score) | 1 |
| 7-question grading scale | 14.29% | 5 right | 0 (perfect score) | 1 |
| 8-question grading scale | 12.5% | 5 right | 0 (perfect score) | 1 |
| 9-question grading scale | 11.11% | 6 right | 0 (perfect score) | 1 |
| 10-question grading scale | 10% | 6 right | 1 | 2 |
Weekly quizzes and spelling tests (11 to 25 questions)
The most common quiz lengths. Each question is worth about 4% to 9%, and a few plus/minus grades can't be reached on some sizes.
| Test | Per question | Pass (60%) | Misses for an A | Misses for a B |
|---|---|---|---|---|
| 11-question grading scale | 9.09% | 7 right | 1 | 2 |
| 12-question grading scale | 8.33% | 8 right | 1 | 2 |
| 13-question grading scale | 7.69% | 8 right | 1 | 2 |
| 14-question grading scale | 7.14% | 9 right | 1 | 2 |
| 15-question grading scale | 6.67% | 9 right | 1 | 3 |
| 16-question grading scale | 6.25% | 10 right | 1 | 3 |
| 17-question grading scale | 5.88% | 11 right | 1 | 3 |
| 18-question grading scale | 5.56% | 11 right | 1 | 3 |
| 19-question grading scale | 5.26% | 12 right | 1 | 3 |
| 20-question grading scale | 5% | 12 right | 2 | 4 |
| 21-question grading scale | 4.76% | 13 right | 2 | 4 |
| 22-question grading scale | 4.55% | 14 right | 2 | 4 |
| 23-question grading scale | 4.35% | 14 right | 2 | 4 |
| 24-question grading scale | 4.17% | 15 right | 2 | 4 |
| 25-question grading scale | 4% | 15 right | 2 | 5 |
Chapter tests (26 to 40 questions)
At this length most scores land on decimals, so these charts also point out scores that change grade when you round.
| Test | Per question | Pass (60%) | Misses for an A | Misses for a B |
|---|---|---|---|---|
| 26-question grading scale | 3.85% | 16 right | 2 | 5 |
| 27-question grading scale | 3.7% | 17 right | 2 | 5 |
| 28-question grading scale | 3.57% | 17 right | 2 | 5 |
| 29-question grading scale | 3.45% | 18 right | 2 | 5 |
| 30-question grading scale | 3.33% | 18 right | 3 | 6 |
| 31-question grading scale | 3.23% | 19 right | 3 | 6 |
| 32-question grading scale | 3.12% | 20 right | 3 | 6 |
| 33-question grading scale | 3.03% | 20 right | 3 | 6 |
| 34-question grading scale | 2.94% | 21 right | 3 | 6 |
| 35-question grading scale | 2.86% | 21 right | 3 | 7 |
| 36-question grading scale | 2.78% | 22 right | 3 | 7 |
| 37-question grading scale | 2.7% | 23 right | 3 | 7 |
| 38-question grading scale | 2.63% | 23 right | 3 | 7 |
| 39-question grading scale | 2.56% | 24 right | 3 | 7 |
| 40-question grading scale | 2.5% | 24 right | 4 | 8 |
Unit tests and midterms (41 to 60 questions)
Each miss costs 2.5 percentage points or less, which gives students more room before a grade drops.
| Test | Per question | Pass (60%) | Misses for an A | Misses for a B |
|---|---|---|---|---|
| 41-question grading scale | 2.44% | 25 right | 4 | 8 |
| 42-question grading scale | 2.38% | 26 right | 4 | 8 |
| 43-question grading scale | 2.33% | 26 right | 4 | 8 |
| 44-question grading scale | 2.27% | 27 right | 4 | 8 |
| 45-question grading scale | 2.22% | 27 right | 4 | 9 |
| 46-question grading scale | 2.17% | 28 right | 4 | 9 |
| 47-question grading scale | 2.13% | 29 right | 4 | 9 |
| 48-question grading scale | 2.08% | 29 right | 4 | 9 |
| 49-question grading scale | 2.04% | 30 right | 4 | 9 |
| 50-question grading scale | 2% | 30 right | 5 | 10 |
| 55-question grading scale | 1.82% | 33 right | 5 | 11 |
| 60-question grading scale | 1.67% | 36 right | 6 | 12 |
Final exams and long tests (65 to 100 questions)
On long exams each question is worth about 1.5% or less, so grades change slowly and every letter grade is reachable.
| Test | Per question | Pass (60%) | Misses for an A | Misses for a B |
|---|---|---|---|---|
| 65-question grading scale | 1.54% | 39 right | 6 | 13 |
| 70-question grading scale | 1.43% | 42 right | 7 | 14 |
| 75-question grading scale | 1.33% | 45 right | 7 | 15 |
| 80-question grading scale | 1.25% | 48 right | 8 | 16 |
| 90-question grading scale | 1.11% | 54 right | 9 | 18 |
| 100-question grading scale | 1% | 60 right | 10 | 20 |
Grading Scale for Any Other Number of Questions
Need a length that isn't listed, like 85, 150 or 250 questions? The interactive tool at the top of this page builds an accurate chart for any number of questions instantly — type your count into the "Custom" box next to the question-count tags and hit + Add. For anything up to 500 questions, with half points and your own grading scale, use the EZ Grader calculator.
Physical EZ Grader vs Digital EZ Grade Chart
For most of history, teachers had only one option: the original cardboard slide chart. Today you have a choice, and both have real advantages depending on how you work.
| Feature | Physical EZ Grader | Digital EZ Grader |
|---|---|---|
| Cost | $7–$10 (one-time) | Free |
| Internet Required | No | Usually yes |
| Question Range | Fixed (up to ~50) | Up to 500+ |
| Speed | Very fast (manual slide) | Very fast (auto-calculate) |
| Portability | Fits in a pocket | Works on any device |
| Durability | Can tear or fade | Never wears out |
| Custom Scales | No | Yes |
| Partial Credit | Not supported | Supported on most tools |
Physical EZ Grader
The original e-z grader slide chart is a compact cardboard tool, usually around 5 × 8 inches. You slide the window to align your question count, then read off the grade next to the number of wrong answers. It costs about $7–$10 and requires zero technology. Many veteran teachers still swear by it — there's something reliable about a physical tool that will never crash or need an update.
The main limitations: it only supports certain fixed question counts (usually up to 50), it doesn't handle partial credit, and it can be hard to read in dim lighting.
Digital EZ Grader
A digital grade calculator replicates the paper chart's function on any screen. Type in the total questions and the number wrong, and you get the score instantly. The best digital tools support tests with hundreds of questions, allow for custom grading scales, and work on phones — which is exactly what you want when you're grading papers at a coffee shop or on the bus. Our free online EZ Grader does all of this, including half-point scoring.
Verdict: For on-the-go grading with maximum flexibility, go digital — use the tool at the top of this page. For a backup tool that works offline during testing days or field trips, a laminated printout of the chart above — or the original slide chart — is worth having.
How to Use an EZ Grade Chart (Step-by-Step)
Whether you're using a physical slide chart, a digital tool, or the printable table above, the process is essentially identical.
- Step 1 — Count the total number of questions on the test. This is your base. A 30-question quiz uses a different column than a 25-question quiz.
- Step 2 — Count the number of wrong answers (not correct ones). This is the key insight that makes grading faster: counting wrong answers is quicker than counting right ones, because there are usually fewer of them. Mark wrong answers as you go through the paper.
- Step 3 — Find your column in the chart (or enter values into the online tool). Match the column to your total question count, then find the row with the number of wrong answers.
- Step 4 — Read the percentage and letter grade. That's your student's score. Done.
- Step 5 — Adjust for partial credit or a curve, if needed. If you give partial credit, calculate the adjusted number of wrong answers before looking up the grade. For a curve, look up the base score, then add the curve points directly to the percentage — or use the grade curve calculator.
Worked Example: 30-question quiz, student got 5 wrong. Score = (25 ÷ 30) × 100 = 83% = B. Look at the 30-question table above: 5 wrong = 83%. Takes about two seconds.
Who Uses the EZ Grade Chart?
The ez grader chart isn't just for one type of teacher. It's used across almost every educational setting you can imagine.
K-12 Teachers are the most common users. From elementary school spelling tests to high school history exams, the grading chart handles daily quizzes, chapter tests, homework, and standardized practice tests. It's especially useful on days when you have multiple classes turning in work at the same time.
College Professors dealing with large multiple-choice exams — sometimes 100 or 200 students — rely on digital grading calculators to turn around scores quickly. An online grader for teachers at the college level often supports custom grading scales and can handle tests with 100+ questions easily; the 100-question grading scale covers the most common final-exam length.
Students use the ez grader chart more than most teachers realize. Before a grade is posted, students estimate their own scores to figure out how they did. During final exam season, many students use a final grade calculator to figure out exactly what score they need on an exam to achieve a specific final grade.
Homeschool Parents need a consistent, fair grading standard that matches what traditional schools use. The grading chart gives homeschool families a neutral reference point that removes the guesswork from evaluation.
Online Tutors grade assignments remotely, often from multiple students across different time zones. A digital ez grader is the fastest way to give accurate feedback without slowing down their workflow.
Substitute Teachers stepping into an unfamiliar classroom don't know the teacher's usual system. Having a printed grading chart on hand means they can grade papers consistently without guessing what the regular teacher would do.
Tips to Grade Faster with an EZ Grade Chart
The chart itself is already a time-saver, but a few habits will make it even more effective.
- Prepare your chart before test day. Know how many questions are on the test before you start handing papers back. If you're using a printable chart or digital tool, have it open and ready — don't scramble for it when papers start coming in.
- Always count wrong answers, not right ones. This bears repeating because it's the biggest single time-saver in the entire grading process. Counting wrong answers is faster because there are usually fewer of them, and your eye naturally flags errors as you read.
- Use your phone for on-the-go grading. A free online grading calculator in your mobile browser is as fast as the physical slide chart, and you always have your phone with you. Bookmark the tool so you're not searching for it during a busy day.
- Laminate a printed copy for durability. If you prefer having a physical reference, print the table from this guide and get it laminated at any office supply store. A laminated grading chart will last years and can be wiped clean.
- Combine with an average grade calculator for final grades. The ez grader chart tells you what a student scored on one test. To calculate final semester grades, pair it with an average grade calculator or, when assignments carry different weights, a weighted grade calculator.
- Use keyboard shortcuts if available on your digital tool. Some online graders support shortcuts like pressing W to record a wrong answer or R to reset — these small efficiencies add up across 30 papers.
FAQ — EZ Grader Chart
Where can I download a printable grading chart PDF?
Use the free grading chart PDF on this page. It has 4 pages covering every test from 5 to 100 questions, with the percentage and letter grade in every box, and prints on US Letter or A4 paper. For a chart of only the sizes you use, select them in the interactive chart above and choose PDF of Selected Sizes.
What is the difference between a grading chart and a grading scale?
A grading scale lists which percentages earn each letter grade (for example, 90–92% is an A−). A grading chart applies that scale to a test of a given length, so you can read a grade straight from the number of wrong answers without working out the percentage.
How many questions can you miss and still get an A?
With an A starting at 90%, you can miss up to 10% of the questions: 1 on a 10-question test, 2 on 20, 3 on 30 and 5 on 50. On a plus/minus scale where a full A starts at 93%, the limit is 7% of the questions. Each test-size page lists the exact number.
What is an EZ grader chart?
An EZ grader chart is a tool — either a physical slide chart or a digital calculator — that instantly converts the number of wrong answers on a test into a percentage score and letter grade. It's used by teachers to grade quizzes and tests faster without doing manual math.
How do I read an EZ grader chart?
Find the column matching your total number of questions, then find the row with the number of wrong answers the student got. The cell where they intersect shows the percentage and letter grade. On the printable tables above, this is done for 5, 10, 20, 25, 30, 40, and 50-question tests, and every size from 5 to 100 has its own full chart in the list above.
What is 3 wrong out of 20 as a grade?
3 wrong out of 20 means 17 correct. (17 ÷ 20) × 100 = 85% = B. The 20-question grade chart lists every other score.
What is 5 wrong out of 30?
5 wrong out of 30 means 25 correct. (25 ÷ 30) × 100 = 83% = B. You can verify this directly in the 30-question table above or the full 30-question grading scale.
Is EZ grader free to use?
The printable chart in this article is completely free. Most digital ez grader tools online are also free to use, with no account required — including our EZ Grader calculator. The physical slide chart costs $7–$10 and is available at teacher supply stores.
Can I print an EZ grader chart?
Yes — the tables in this guide are designed to be printed. Use the Print Chart button on the interactive tool above, open your test size from the list above and use its Print this chart button, or screenshot the section that matches your most common test length and print it on cardstock. Laminating it will make it last much longer.
Does EZ grader work for partial credit?
The standard ez grader chart is built for whole-number right/wrong scoring. For partial credit, calculate the effective number of wrong answers first (factoring in partial points) and then use the chart. Many digital grading calculators have built-in partial credit support that handles this automatically — the EZ Grader supports half and quarter points.
What is the difference between EZ grader and a grade calculator?
An ez grader chart specifically takes number of wrong answers as input, while a general-purpose grade calculator may ask for the number correct or the raw score directly. Both produce the same final result; the difference is just in how you enter the data.
Can students use EZ grader?
Absolutely. Students use grading charts all the time to estimate their scores before grades are posted, or to figure out how many questions they can afford to get wrong and still hit a target grade.
What grading scale does EZ grader use?
The interactive chart and the PDF use the standard U.S. plus/minus scale (A+ 97%, A 93%, A− 90%, B+ 87% and so on down to D− at 60%, with F below 60%). The printable tables in this guide use the plain scale: A = 90–100%, B = 80–89%, C = 70–79%, D = 60–69%, F = below 60%. The EZ Grader lets you set your own cutoffs if your school uses a different scale.
How do I use EZ grader for weighted grades?
The ez grader chart handles individual assignment scores. To apply weights (e.g., tests worth 60%, homework worth 40%), calculate each category's average separately and then combine them using your weight percentages. A weighted grade calculator is the best tool for the final step.
Is EZ grader accurate?
Yes. The ez grader chart is based on straightforward division — there's no estimation or rounding involved beyond standard percentage conventions. As long as you've counted the wrong answers correctly, the result is accurate.
What is a grading scale chart?
A grading scale chart is a table that lists percentage ranges next to their matching letter grades (and often GPA points) — for example, 90–92% = A-. The grading scale chart near the top of this page is one example. Combined with an EZ grader, it turns a raw score into a final letter grade in one lookup.
How do I calculate a grade from a fraction, like 23 out of 28?
Divide the first number by the second and multiply by 100: (23 ÷ 28) × 100 = 82.1%, which is a B-. Type any two numbers into the Quick Grade Calculator at the top of this page to skip the math entirely, or open the 28-question grade chart to see every score on that test.
Is "easy grader" the same as "EZ grader"?
Yes — "easy grader," "ez grader," and "e-z grader" all refer to the same type of tool: something that converts wrong or correct answers into a percentage and letter grade without manual math. The spelling varies, but the function is identical, and every tool on this page works the same way regardless of which name you search.
The EZ grader chart is one of the most enduring tools in American education for a simple reason: it works. In the time it takes to calculate one grade by hand, a grading chart can process an entire stack of papers. Whether you prefer the classic cardboard slide chart that's been around since the 1950s, the printable tables in this guide, or the interactive tool at the top of this page, it saves real time and eliminates arithmetic errors — about five seconds per paper once you're in a rhythm. Pair it with a grade to GPA converter, a weighted grade calculator, or a test curve calculator for final grades, or check the GPA scale guide for the bigger picture.