📚 University Guides Guide

Anna University CGPA Calculator & Grade Formula (Regulation 2017 & 2021)

Calculate CGPA and percentage for Anna University Chennai engineering students under Regulation 2017 and 2021.

GM Written by Grademark Academic Team

Last Updated: 2026-02-01 • Reading Time: 5 min read

Anna University (Regulation 2017 & 2021) Grade Point System

Under Anna University regulations 2017 and 2021, grades range from O (10 points) to A+ (9 points), A (8 points), B+ (7 points), B (6 points), and C (5 points). The overall percentage mark is converted using Percentage = CGPA × 10.

🔄 CGPA ↔ Percentage Converter

Convert CGPA to percentage score using your official university formula

University / Board Formula:

Enter CGPA Score (0.00 to 10.00):

CGPA

Quick Presets:

📐 Active Conversion Formula:

Percentage = (CGPA - 0.75) × 10

Equivalent Percentage

77.50%

First Class with Distinction