United States
Use the proportional formula; WES for final reporting
US graduate programs use the 4.0 GPA scale. Most adcoms accept (CGPA ÷ scale × 4) for shortlisting; final reporting often goes through WES, ECE, or IEE. 3.0 is the baseline for graduate admission; 3.5+ is competitive at top-50, 3.7+ at top-25.