Education Calculators for India and Global Students
This category covers the academic math students look up most: GPA on the global 4.0 scale, CGPA and SGPA on India's 10-point scale (plus combining them across semesters), converting between CGPA and percentage, working out a course grade from weighted assignments, figuring out what you need on a final exam, and — often the most practically useful of all — how many classes you can afford to miss and stay above your required attendance.
All eleven calculators run entirely in your browser, use widely-followed grading conventions with editable defaults, and link to each other where they solve related but distinct problems.
Which Calculator Do I Need?
If you're not sure which of the eleven tools below fits your situation, use this quick guide:
| Your situation | Use this calculator |
|---|---|
| My university grades on the 4.0 scale (common outside India) | GPA Calculator |
| I have every subject's grade point and credits and want overall CGPA directly | CGPA Calculator |
| I know my CGPA and need it as a percentage | CGPA to Percentage Calculator |
| I know my percentage and need it as a CGPA | Percentage to CGPA Calculator |
| I have marks across several subjects with different maximums and want overall % | Marks Percentage Calculator |
| I need to know how many classes I can skip, or must attend, to hit required attendance | Attendance Calculator |
| I want my current course grade from weighted homework/quiz/exam scores | Grade Calculator |
| I want to know what score I need on my final exam for a target grade | Final Grade Calculator |
| I want this semester's SGPA from my subjects' grade points and credits | SGPA Calculator |
| I already know each semester's SGPA and want to combine them into CGPA | SGPA to CGPA Calculator |
| I have internal marks and want to know exam marks needed for a target % | Marks Needed Calculator |
All Education Calculators
Free, no sign-up, no data uploaded — click any calculator to open it.
GPA Calculator
Add each course's letter grade and credit hours to get your GPA on the standard 4.0 scale.
CGPA Calculator
Add every subject's grade point and credits to get your overall CGPA on the 10-point scale.
CGPA to Percentage Calculator
Convert your CGPA into an equivalent percentage using the standard Indian university multiplier.
Marks Percentage Calculator
Add marks obtained and maximum marks for each subject to get your overall percentage and grade.
Attendance Calculator
Find out how many classes you can skip, or how many you need to attend, to hit your required attendance.
Grade Calculator
Add every graded item's score and weight to see your current overall course grade.
Final Grade Calculator
Find out exactly what score you need on your final exam to hit your target overall grade.
SGPA Calculator
Add this semester's subjects with grade point and credits to get your SGPA on the 10-point scale.
SGPA to CGPA Calculator
Already know each semester's SGPA? Add them all with their credits to get your overall CGPA.
Marks Needed Calculator
Enter your internal marks and exam structure to see exactly what you need in the final exam.
Percentage to CGPA Calculator
Convert your percentage marks into an equivalent CGPA using the standard divisor (or your own).