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Grade Calculator

Convert marks to grades, percentages, and grade points across CBSE, Anna University, UGC, and US letter grading schemes.

Grading Scheme
Enter Marks
Results
Enter marks to see grades.
Grade Scale Reference

Grade Calculator FAQ

Anna University uses a higher cutoff for each grade - for example, O grade (10 GP) requires 91%+ at Anna University but only 90%+ under UGC CBCS. The pass mark also differs: 45% at Anna University vs 40% for UGC. Many deemed universities follow UGC CBCS while Anna University-affiliated colleges follow Anna University's own scheme.

GPA (shown as overall GPA) is the simple average of grade points across all subjects entered. In real SGPA calculations, credits are weighted - a 4-credit subject contributes more than a 2-credit subject. Use our GPA & SGPA Calculator for credit-weighted SGPA and CGPA calculations.

Enter the marks you scored in the "Marks" column and the maximum marks for that subject in the "Max" column. The calculator converts to percentage automatically (Marks ÷ Max × 100) before looking up the grade. This lets you mix subjects with different maximum marks (e.g. 75-mark theory + 25-mark practical).