Grading System in Thailand

GPA Calculator Thailand GPA calculator

Grading Scales:

Most Common

Grade Grade Description US Grade
A Excellent A
A- Very Good A-
B+ Very Good B+
B Good B
C+ Fairly Good C+
C Fair C
D+ Poor D+
D Very Poor D
F Failure F
AU Audit -
I Incomplete -
W Withdrawal -
WF Withdrawal because of Failure -


Secondary School

Grade Scale Grade Description US Grade
4 75.00 - 100.00 Excellent A
3 65.00 - 74.00 Superior B
2 55.00 - 64.00 Satisfactory C
1 50.00 - 54.00 Pass D
F 0.00 - 49.00 Fail F

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