Tools
Grading Calculators for Teachers
Free calculators for the grading jobs teachers do every week. Each one runs in your browser, works on a phone, and shows the math behind the answer.
All calculators
- Test grader Total questions and number wrong → percentage and letter grade. Quick-grade a whole stack of papers.
- Weighted grade calculator Combine tests, quizzes and homework with different weights into one course grade.
- Final grade calculator Find the score needed on a final exam to finish with an A, B, C or a passing grade.
- Test curve calculator Try four common curving methods on a whole class's scores and compare the results.
- Grading charts Printable charts for every test length from 5 to 200 questions.
Which calculator do I need?
Grading one test or quiz? Use the test grader. Enter the number of questions and the number wrong. For a stack of papers, switch to quick grade mode and press Enter after each one.
Working out a report card grade? Use the weighted grade calculator if your gradebook has categories such as tests 40% and homework 20%.
A student asks what they need on the final? The final grade calculator gives the exact score for every letter grade.
Not sure which scale your school uses? The calculators default to the standard US plus/minus scale. You can switch to a 10-point or 7-point scale and set your own passing percentage in the grader settings; the choice is saved on your device and used by every chart and calculator.
A test went badly for the whole class? Compare curving methods with the curve calculator, and read how to curve grades fairly first.
Is it safe to use with real student scores? Yes. Every calculator works entirely in your browser. You never need to type a student's name, nothing you enter is sent to a server, and nothing is saved when you close the page.