sitemap
IB Grade Conversion Chart for SL Years 1 & 2

 IB SL/HL Grade Conversion Scale

To be used for IB type assessments/assignments only.

No grade lower than a 50 unless work is not turned in.

A  (82-100)

IB Conversion

 

D  (43-55)

IB Conversion

99-100

100

 

55

76

97-98

99

 

53-54

75

95-96

98

 

51-52

74

92-94

97

 

48-50

73

88-91

96

 

46-47

72

86-87

95

 

44-45

71

84-85

94

 

43

70

82-83

93

 

 

 

 

 

 

F (0-43)

 

B  (69-81)

 

 

43

69

81

92

 

42-39

68

80

91

 

38-35

67

78-79

90

 

34-31

66

76-77

89

 

30-28

65

74-75

88

 

29-26

64

72-73

87

 

25-22

63

70-71

86

 

21-18

62

69

85

 

17-14

61

 

 

 

13-10

60

C  (57-68)

 

 

9

59

68

84

 

8

58

67

83

 

7

57

65-66

82

 

6

56

63-64

81

 

5

55

61-62

80

 

4

54

59-60

79

 

3

53

58

78

 

2

52

57

77

 

1

51

 

 

 

0

50

 

 

Generic IB Marks Conversion Scale

Please note that IB does not recognize +/- as part of the grade.

7+ = 99-100%

6+ = 95%

5+ = 89%

4+ = 79%

3+ = 69%

2+ = 59%

1+ = 49%

7 = 98%

6 = 93%

5 = 85%

4 = 75%

3 = 65%

2 = 55%

1 = 45%

7- = 96%

6- = 90%

5- = 80%

4- = 70%

3- = 60%

2- = 50%

1-= 40%