Grading

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GRADING SYSTEM

Grades represent the permanent official record of a student's academic performance. The grading system at Iowa State University operates according to regulations outlined on the Grade Policies tab. The following provides quality points assigned for each letter grades:

Grade Quality Points
A 4.00
A- 3.67
B+ 3.33
B 3.00
B- 2.67
C+ 2.33
C 2.00
C- 1.67
D+ 1.33
D 1.00
D- 0.67
F 0.00
Grade Description
P Passing mark obtained under the Pass-Not Pass system.*
NP Non-passing mark obtained under the Pass-Not Pass system.*
S Satisfactory completion of a course offered on a Satisfactory-Fail grading basis. May also be reported to indicate satisfactory performance in R (required-credit) courses, and in courses numbered 290, 490, 590, and 690.
T Satisfactory performance (equivalent to a grade of C or better in courses numbered 100-499, and a grade of B or better in courses numbered 500-699) in a special examination for academic credit.
W The course was officially dropped by the student after the first week of the term.
N No report was submitted by the instructor. An N is not a recognized grade or mark, it merely indicates the instructor has not submitted a grade and that a grade report has been requested. A nonreport (N) will automatically change to a grade of 'F' after one calendar year whether or not the undergraduate student enrolled during that period. If the N is outstanding at the time of graduation, it will be converted to a grade of 'F'. Undergraduate students will not graduate with N on their permanent record. Repeating a course will not resolve the N.
I Incomplete. An incomplete mark may be assigned when the student is passing at the time of the request, but special circumstances beyond the student's control prevent completion of the course. In general, failing the final exam or project or not submitting course work as a result of inadequate preparation or learning are not valid excuses.***

*See Pass Not Pass Grading.

***See Incomplete Marks in the Grade Policies tab.