TeacherGrade calculators for teachers and students
Test percentages, GPAs, final exam targets and weighted course grades — turned into instant, checkable answers using the published grading scales for the United States, Canada and Australia.
Every calculation runs in your browser — nothing you type is uploaded or stored.
Try the EZ Grader
Our most-used tool: total questions and wrong answers in, percentage, letter grade and a full grading chart out.
17 of 20 correct · 3.0 grade points on the US Standard (90/80/70/60) scale
Grading chart for 20 questions
| Wrong | Correct | Percentage | Grade |
|---|---|---|---|
| 0 | 20 | 100.0% | A |
| 1 | 19 | 95.0% | A |
| 2 | 18 | 90.0% | A |
| 3 | 17 | 85.0% | B |
| 4 | 16 | 80.0% | B |
| 5 | 15 | 75.0% | C |
| 6 | 14 | 70.0% | C |
| 7 | 13 | 65.0% | D |
| 8 | 12 | 60.0% | D |
| 9 | 11 | 55.0% | F |
| 10 | 10 | 50.0% | F |
| 11 | 9 | 45.0% | F |
| 12 | 8 | 40.0% | F |
| 13 | 7 | 35.0% | F |
| 14 | 6 | 30.0% | F |
| 15 | 5 | 25.0% | F |
| 16 | 4 | 20.0% | F |
| 17 | 3 | 15.0% | F |
| 18 | 2 | 10.0% | F |
| 19 | 1 | 5.0% | F |
| 20 | 0 | 0.0% | F |
Open the full EZ Grader page for the formula, worked examples and printable charts.
All grade tools
Grading
EZ Grader Calculator
Turn total questions and wrong answers into a percentage, letter grade and full grading chart.
Teachers & StudentsTest Grade Calculator
Convert points earned out of points possible into a percentage and letter grade.
TeachersGrading Chart
Printable grading charts for any test size, from 5 to 100 questions.
Teachers & StudentsGrade Curve Calculator
Apply a flat, percentage or square-root curve to a raw score.
StudentsAssignment Grade Calculator
Convert one assignment score to a percentage and see how much it moves your course grade.
TeachersClass Grade Calculator (Batch Grader)
Grade a whole class set at once: one list of wrong answers in, a full results table out.
Teachers & StudentsQuiz Grade Calculator
Grade a quiz in seconds from questions correct, wrong answers or points.
Teachers & StudentsExam Score Calculator
Convert an exam score in points or questions into a percentage and letter grade.
Grade Planning
Final Grade Calculator
Find the exact score you need on your final exam to reach your target course grade.
StudentsWeighted Grade Calculator
Combine category scores and weights, such as homework 20% and tests 40%, into your real course grade.
StudentsGrade Calculator
Work out your overall course grade from assignments, tests and exams, with or without weights.
StudentsSemester Grade Calculator
Combine two quarter grades and a final exam into your semester grade.
StudentsQuarter Grade Calculator
Work out your quarter grade from assignments, quizzes and tests within the quarter.
StudentsGrade Needed Calculator
The score you need on your next test or remaining work to hit your target grade.
GPA
GPA Calculator
Calculate your semester GPA from course grades and credit hours on the 4.0 scale.
StudentsHigh School GPA Calculator
Calculate unweighted and weighted high school GPA, with Honors and AP course bonuses.
StudentsCGPA Calculator
Calculate cumulative grade point average across courses and semesters.
StudentsCumulative GPA Calculator
Combine semester GPAs, weighted by credits, into one cumulative GPA.
StudentsCanada GPA Calculator
Calculate GPA the Canadian way, on both the 4.0 and 4.33 scales.
StudentsAustralia GPA Calculator
Calculate your Australian university GPA on the 7.0 scale from HD, D, C and P grades.
StudentsRaise GPA Calculator
Find the GPA you need from now on to reach your target cumulative GPA.
Converters
Percentage to Letter Grade Converter
Convert any percentage score to a letter grade on US, Canadian and Australian scales.
StudentsLetter Grade to GPA Converter
See the GPA points and percentage range behind any letter grade.
StudentsGPA to Percentage Converter
Convert a 4.0-scale GPA to an approximate percentage score.
StudentsPercentage to GPA Converter
Convert a percentage score to GPA points on the 4.0 scale.
Teachers & StudentsPoints to Percentage Calculator
Total points earned and points possible across assignments, converted to a percentage.
StudentsWAM to GPA Converter
Convert an Australian Weighted Average Mark to a GPA on the 7.0 and 4.0 scales.
StudentsUK Grade to US GPA Converter
Convert UK degree percentages and classifications to US GPA equivalents.
Built for two kinds of reader
For teachers
Grade a paper, a quiz or a whole class set without redoing the arithmetic, print a grading chart for the test sizes you actually use, and curve a hard exam with a rule you can explain to students and parents. Start with the teachers hub.
For students
Know your GPA, the score you need on the final, and the grades required to raise your average, before results day. Every student tool shows the formula it uses, so you can check the number instead of trusting it. Start with the students hub.
Grading guides
How Does Grading on a Curve Work?
Grading on a curve explained: the square-root curve, flat points, percentage boosts and true bell curves, with worked examples of what each does to real scores.
GuideWhat Is a Good GPA in High School and College?
What counts as a good GPA depends on the goal: good standing, scholarships, honours, graduate school and employers each draw the line in a different place.
GuideWeighted vs Unweighted GPA Explained
Weighted GPA rewards harder classes with bonus points; unweighted GPA treats every class equally. How each is calculated, and how colleges read them.
GuideHow to Calculate Your Final Grade
A complete walkthrough of final grade maths: weighted categories, points systems, and solving for the exam score you need, each with worked numbers.
GuideUS, Canada & Australia Grading Systems
The same student, three transcripts: how grading scales, pass marks and GPA systems differ across the United States, Canada and Australia.
GuideHow to Calculate Your GPA, Step by Step
Calculate your GPA by hand in four steps: convert grades to points, multiply by credits, add up and divide. Worked example and common mistakes included.
GuideHow to Raise Your GPA
Raising a GPA is an arithmetic problem first. Work out the exact average you need, then use the study and course-choice methods that actually move it.
GuideWhat GPA Do You Need for College Admissions?
Typical admitted-student GPA ranges for Ivy League, top public and mid-tier US universities, plus the Canada and Australia equivalents.
GuideHow to Calculate a Weighted Grade
When homework counts 20% and tests 50%, your course grade is a weighted average. The method, a worked example, and how it differs from points-based grading.
GuideWhat Do Letter Grades Mean?
What an A, B, C, D or F means in percentages and GPA points in the US, and how the same letters shift in Canada and Australia.
How TeacherCalc grades
Every calculator on this site reads its letter grades and grade points from one published set of scales: the US standard scale (A from 90%), the US plus/minus scale (A from 93%, A- from 90%), the Canadian scale (A from 85%, pass at 50%) and the Australian band scale (High Distinction from 85% on a 7.0 GPA). Where a result depends on the scale, the tool either lets you choose it or shows the result on several scales at once. Formulas are printed on every page together with a worked example, because a grade you cannot check is a grade you should not have to trust.
Last reviewed: November 2026. TeacherCalc results are estimates for planning; official grades are always those recorded by your school or university.