Grade Tests, Track GPA, and Plan Grades — All in One Place
TeacherCalculator.net is a collection of free calculators for teachers and students: instant test grading, a weighted and unweighted GPA calculator, weighted and semester grades, a scientific calculator for math and science, and more. No sign-up, no ads, nothing to install.
Our most-used tool
Free EZ Grader Calculator
Enter how many questions were on a test and the full grading chart appears instantly — a percentage and letter grade for every possible score, for any test from 1 to 500 questions.
- Half points, quarter points and bonus points
- Your own custom grading scale, saved on your device
- Weighted Grade, Final Grade and Average Grade tabs — letters like B+ work too
- Class Mode: paste a class list and grade everyone at once
- Print or save the chart as a PDF
| Wrong | % | Grade |
|---|---|---|
| 1 | 95% | A |
| 3 | 85% | B |
| 5 | 75% | C |
| 7 | 65% | D |
From the 20-question grade chart
Find the Right Calculator
Every tool below is free to use, works on any device, and needs no account. Pick the one that matches what you're trying to figure out.
Grading & Test Scores
For teachers grading tests, quizzes and courseworkEZ Grader Calculator
Instant grading chart, weighted and final grades, and Class Mode for a whole class at once.
Teacher Calculator
An all-in-one quick grader, weighted grade and final-exam calculator.
Grade Chart
Printable grade charts for every test from 5 to 100 questions.
Grade Curve Calculator
Curve a class's scores fairly using common curve methods.
Weighted Grade Calculator
Average grade categories by how much each one is worth.
Average Grade Calculator
Find the simple average of any set of test or quiz scores.
GPA & College Planning
For students tracking or converting a GPAGPA Calculator
Weighted and unweighted GPA side by side, with Honors, AP, semesters, retakes and a GPA planner.
GPA Scale Guide
What every GPA from 2.0 to 4.0 means, with letter grades and percentages.
GPA Calculator Without Credits
Average your GPA using letter grades alone — no credit hours needed.
GPA to Letter Grade Calculator
Convert a GPA value into its letter grade instantly.
Grade to GPA Calculator
Convert any letter grade or percentage into a GPA point value.
Weighted to Unweighted GPA
Convert a weighted GPA (like a 4.3) back to the standard 4.0 scale.
Semester Grade Calculator
Combine quarter grades and a final exam into one semester grade.
Math & Science Calculators
For homework, labs and exam practiceScientific Calculator
Trig, logs, powers, roots, fractions and memory, with keyboard support and history.
fx-991CW Style Calculator
Equation solver, statistics, calculus, complex numbers and base-N in one calculator.
Quadratic Formula Calculator
Exact and decimal roots, discriminant, vertex, graph and every step.
System of Equations Calculator
Solve 2 or 3 linear equations with exact fractions and step-by-step working.
Standard Deviation Calculator
Sample or population standard deviation, variance and mean with a step table.
Significant Figures Calculator
Count, round and calculate with the sig fig rules.
Scientific Notation Calculator
Convert to scientific or E notation and do math with powers of ten.
Why Teachers and Students Use These Tools
Every calculator on this site follows the same rules: it's free, it works instantly, and it doesn't ask for anything in return.
Open a calculator and start using it — nothing to sign up for
Answers update as you type, with no submit button
Custom grading scales, not just one fixed default
Phone, tablet or desktop — the same tool either way
Frequently Asked Questions
Is TeacherCalculator.net really free?
Which calculator should I use to grade a test?
Where can I find a grading scale for a specific number of questions?
Which calculator should I use for GPA?
Do you have a scientific calculator?
Can students use these tools, not just teachers?
Do you store or share my data?
I can't find a calculator for what I need — what now?
A Note From the Team
Grading, GPA math and semester planning all eat into time that could go toward actual teaching and learning. Every calculator here exists to hand a few of those minutes back.
Pick a tool above, or start with the EZ Grader if you're not sure where to begin.