Grade Percentage Calculator
Enter your marks for each subject to calculate your overall percentage and letter grade.
Enter Marks by Subject
Subject
Marks Got
Out Of
Formula Used
Percentage = (Total Marks Obtained ÷ Total Maximum Marks) × 100
Example: 78 + 85 + 91 = 254 out of 300 → (254 ÷ 300) × 100 = 84.67%
Enter marks above to see your percentage
Grade Reference
90–100%A+
80–89%A/A-
70–79%B/B+
60–69%C/B-
50–59%C-
Below 50%D/F