GPA Calculator - (A-F)/(0-100)

You can set the grade ceiling but the alphabetical one is based on

"A": 4,

'A-': 3.75,

'B+': 3.5,

'B': 3,

'B-': 2.75,

'C+': 2.5,

'C': 2,

'C-': 1.75,

'D+': 1.5,

'D': 1,

'D-': 0.75,

'F': 0