Study Calculators for Students & Teachers

Work out the grade you need on the final, check your own result, plan your revision, and solve the maths in between — ten free tools that run entirely in your browser. Nothing you type is uploaded, saved, or shared.

Browse all 10 free tools
✓ 100% Free✓ No Sign-Up✓ No Records Stored✓ Works on Any Phone

Final Grade Calculator

See exactly what score you need on the final exam to finish the course with the grade you want.

Weighted Grade Calculator

Add each assignment with its score and weight to see your current course grade as a percentage and a letter.

Result & Grade Checker

Type in your own subject marks to get your total, percentage, letter grades, and GPA points — checked by you, stored nowhere.

Attendance Calculator

Find your attendance percentage and how many classes you must attend in a row — or can safely miss — to hit your target.

CGPA to Percentage Converter

Convert a 10-point CGPA to a percentage with the ×9.5 formula, and move between a 4.0 GPA and percentage with a standard table.

Quadratic Equation Solver

Solve ax² + bx + c step by step: discriminant, both roots, and the vertex of the parabola.

Fraction Calculator

Add, subtract, multiply, and divide fractions, with the answer simplified, as a mixed number, and as a decimal.

Percentage Tools for Marks

Quick percentage help for schoolwork: score change between two tests, average of several scores, and what percent one mark is of another.

Study Plan Calculator

Turn a pile of chapters and pages into a calm day-by-day plan that fits the days and hours you actually have.

School Age Calculator

Check a child's age on the school cutoff date and the likely kindergarten or Grade 1 entry year. Informational only — districts vary.

Your numbers stay yours. EduKit keeps no student records, no school or university data, and no copies of anything you enter. Every calculation happens on your own device, in this browser tab — close the tab and it is gone. Read more on our privacy policy.

Built for the questions students actually ask

“What do I need on the final to keep my A?” “Am I above the attendance line?” “What does a 8.6 CGPA mean as a percentage?” These come up in every classroom, every term — and they are all simple arithmetic once someone shows you the formula. EduKit shows the formula on every page, works through an example, and lets you run your own numbers as many times as you like.

Teachers use the same tools to sanity-check gradebooks, explain weighted marking to a class, or show a student exactly how many classes stand between them and the attendance requirement. No accounts, no spreadsheets, no waiting.

More Free Tool Kits

EduKit is one of a family of free, no-sign-up tool kits. Try the others: