Standard Conversion Formulas
1. CBSE 10.0 CGPA Scale Formula
CGPA = Percentage / 9.5 | Percentage = CGPA × 9.5
2. 4.0 US Scale Standard Mapping
4.0 GPA = (Percentage / 100) × 4.0 (Linear Equivalent)
Understanding GPA vs. CGPA Scales
Educational institutions globally use different grading conventions. US and European universities often evaluate students on a 4.0 GPA scale with letter grades (A, B, C, D, F). In India, universities and school boards (such as CBSE) typically use a 10.0 CGPA scale or overall percentage marks.
How to Use This Calculator
- Select Percentage to GPA / CGPA to convert your percentage score into 4.0 GPA, 10.0 CGPA, and letter grade equivalents.
- Select CGPA to Percentage to convert your 10.0 scale CGPA score back into overall percentage.
- Choose the conversion factor applicable to your educational institution (e.g., 9.5 for CBSE).
Frequently Asked Questions
How is Percentage converted to 10.0 scale CGPA?
In standard Indian academic systems (like CBSE), Percentage is converted to CGPA by dividing the percentage by 9.5 (CGPA = Percentage / 9.5).
How to convert Percentage to a 4.0 US GPA scale?
On a standard 4.0 US scale, 90-100% corresponds to 4.0 (A grade), 80-89% corresponds to 3.0-3.9 (B grade), 70-79% corresponds to 2.0-2.9 (C grade), and 60-69% corresponds to 1.0-1.9 (D grade).
What is the difference between GPA and CGPA?
GPA (Grade Point Average) usually measures performance for a single term or semester, while CGPA (Cumulative Grade Point Average) measures overall performance across all academic terms.