Student Calculators
Practical calculators for attendance shortage, grade planning, CGPA conversion, and final exam marks. Useful for college and engineering students.
All tools run 100% client-side in your browser. No uploads, no signup, no data selling.
Percentage Calculator
Find percentages, increases, decreases and reverses in one box. Everyday math — free, no signup.
GPA to 4.0 Scale Converter
Convert your Indian percentage or 10-point CGPA into the standard US 4.0 GPA scale for study abroad.
Attendance Shortage Calculator
Calculate how many classes you need to attend to reach 75% attendance or how many classes you can safely miss.
Exam Marks Needed Calculator
Find out exactly how many marks you need in your final exam to pass or reach your target grade based on internal scores.
75% Attendance Calculator
Calculate how many classes you need to attend or can safely skip to maintain a minimum 75% attendance rate.
SGPA Calculator
Compute your Semester Grade Point Average (SGPA) based on course credits and grade points earned. Fast, 100% private client-side processing with zero file uploads and no registration required.
CGPA Calculator
Calculate your Cumulative Grade Point Average (CGPA) from semester-wise SGPA or grade points. Fast, 100% private client-side processing with zero file uploads and no registration required.
CGPA to Percentage Calculator
Convert your CGPA to equivalent percentage marks using standard university formulas (like CBSE 9.5x).
- Check your current attendance first — most Indian universities require 75% to sit for end-semester exams.
- Use the shortage calculator to find exactly how many more classes you can miss without falling below the cutoff.
- Convert SGPA to CGPA after each semester to track whether you are on course for your target placement cutoff.
- Before finals, run the marks-needed calculator so every study hour goes to the subject that moves your grade most.
How much attendance is required in college?
Most Indian universities and autonomous colleges require a minimum of 75% attendance in each subject to be eligible for semester exams. Some allow condonation down to 65% on medical grounds with a fee.
How do I calculate how many classes I can bunk?
Enter classes held so far and classes attended into the 75% attendance calculator. It tells you exactly how many more you can miss while staying above the cutoff, assuming different totals for the rest of the semester.
How is CGPA calculated from SGPA?
CGPA is the credit-weighted average of all your semester SGPAs. Multiply each SGPA by that semester's total credits, add them up, and divide by total credits across semesters.
How do I convert CGPA to percentage?
Most universities use CGPA × 9.5 (CBSE-style) or a custom multiplier like × 10. Select your university's formula in the converter — recruiters usually ask for the equivalent percentage on application forms.