Student Calculators
Every number a student checks during the year — CGPA, marks percentage, grades, attendance, days left for exams and how much to study each day. Free, instant, and each one shows how the answer is worked out.
📊 Results day
Your marksheet is out. Work out what it means.
Marks Percentage Calculator
Calculate your percentage of marks across subjects (total ÷ maximum × 100), plus best-of-5 percentage for CBSE and state boards. Free, with steps.
Open Marks % →CGPA Calculator
Convert CGPA to percentage (CBSE: CGPA × 9.5) and percentage to CGPA, or calculate CGPA from semester SGPAs and credits. Free, with step-by-step working.
Open CGPA →Grade Calculator
Convert marks into a grade and grade point on the CBSE A1–E scale or the UGC university O–F scale, and see how many marks you need for the next grade.
Open Grade →Percentage Calculator
Free percentage calculator: find X% of Y, what % A is of B, and percentage increase or decrease, using the percentage formula with step-by-step working.
Open Percentage →
🏫 During the term
Stay eligible and on track.
Attendance Calculator
Attendance percentage calculator: check your attendance %, how many classes you can miss and stay above 75%, or how many you must attend to reach 75%.
Open Attendance →Age Calculator
Calculate exact age in years, months and days from date of birth, as on today or any date. Check government job and exam age limits as on a cut-off date.
Open Age →
📅 Exam season
Plan the days you have left.
Exam Countdown
Live countdown to your exam in days, hours, minutes and seconds. Add any exam and date, see study days left, and share the countdown link with friends.
Open Exam Countdown →Study Time Calculator
Free exam study planner for students: enter exam date, chapters and daily hours to see chapters per day, hours per chapter and when to start revision.
Open Study Planner →
📘 Want better marks next time?
TalentJR CBSE has chapter-wise notes, flashcards and practice quizzes for every NCERT subject from Class 1 to 12.
Start studying free →Frequently asked questions
Which calculator should I use for my board exam result?
Use the Marks Percentage Calculator for your overall and best-of-5 percentage, and the Grade Calculator to see the grade for each subject. If your marksheet shows CGPA, use the CGPA Calculator to convert it to a percentage.
How do I check if I have 75% attendance?
Enter the classes held and attended in the Attendance Calculator. It shows your percentage and how many classes you can miss, or must attend, to stay at 75%.
Are these calculators free for students?
Yes. All TalentJR calculators are free, need no login and work on any phone. Nothing you type is stored.