Grading System in Oman

Most Common

Scale	US Grade
95.00 - 100.00	A
90.00 - 94.99	A-
87.00 - 89.99	B+
83.00 - 86.99	B
80.00 - 82.99	B-
77.00 - 79.99	C+
73.00 - 76.99	C
70.00 - 72.99	C-
65.00 - 69.99	D+
60.00 - 64.99	D
0.00 - 59.99	F

Technological Education Directorate

Grade	Scale	US Grade
A	90.00 - 100.00	A
A-	85.00 - 89.00	A-
B+	80.00 - 84.00	B+
B	76.00 - 79.00	B
B-	73.00 - 75.00	B-
C+	70.00 - 72.00	C+
C	67.00 - 69.00	C
C-	60.00 - 66.00	C-
D	55.00 - 59.00	D
F	0.00 - 54.00	F

International Baccalaureate Diploma

Scale	US Grade
6.00 - 7.00	A
5.00 - 5.99	B
4.00 - 4.99	C
3.00 - 3.99	D
1.00 - 2.99	F
0.00 - 0.99	F