A GPA calculator is a simple online tool that helps students compute their Grade Point Average (GPA) by entering their course grades and credit hours or units. It automatically applies the standard grading scale to calculate the overall academic performance accurately and quickly, saving time compared to manual calculations. Students use a GPA calculator to track their academic progress, check eligibility for scholarships, honors, or graduation requirements, and set study goals for improvement. It is widely used in schools and universities because it is fast, easy to use, and provides instant and reliable results.