An online GPA calculator is a web-based tool that helps students easily compute their Grade Point Average (GPA) by entering their course grades and credit hours or units. It automatically applies the standard GPA formula to calculate an accurate overall academic score, saving time and reducing manual errors. Students use an online GPA calculator to track their academic performance, monitor progress, and check eligibility for scholarships, honors, or graduation requirements. It is fast, convenient, and accessible on any device, making it a helpful tool for managing and understanding academic results efficiently.