IB Marks Grade Marks 1= 32 2= 36 3= 40 4= 44 5= 48 6= 52 7= 56 8= 60 9= 64 10=68 11= 72 12= 76 13= 80 14= 84 15= 88 16= 92 17= 96 18= 100
IB Marks Grade Marks 14 and below = 40 15 = 45 16 = 48 17 = 50 18= 51 19= 53.5 20= 56 21-22= 61.5 23-24=66 25-26= 70.5 27-28= 74 29-30= 78.5 31-32= 83 33-34= 87 35-36= 90.5 37-38= 94 39-40=97 41-45= 100
IB Marks Grade Marks 1.5 or lower = 50 2 = 52 2.5 = 54 3 = 56 3.5 = 58 4 = 60 4.5 = 62 5 = 64 5.5 = 66 6 =68 6.5 = 72 7 = 76 7.5 = 80 8 = 84 8.5 = 88 9 = 92 9.5= 96 10= 100