The University of Washington Tacoma uses a numerical grading system at both the graduate and undergraduate levels of instruction.

Grading system for undergraduate students

At the undergraduate level, instructors may report grades from 4.0 to 0.7 in 0.1 increments and the grade 0.0. The grade 0.0 is assigned for failing work or unofficial withdrawal. Grades in the range 0.6 to 0.1 may not be assigned. Grades reported in this range will be converted by the Registrar to 0.0. Numerical grades may be considered equivalent to letter grades as follows:

Undergraduate grading scale
Letter grade Numerical grade
A 4.0 – 3.9
A- 3.8 – 3.5
B+ 3.4 – 3.2
B 3.1 – 2.9
B- 2.8 – 2.5
C+ 2.4 – 2.2
C 2.1 – 1.9
C- 1.8 – 1.5
D+ 1.4 – 1.2
D 1.1 – 0.9
D- 0.8 – 0.7 (Lowest passing grade)
E 0.0 (Failure or unofficial withdrawal; no credit earned)

Grading system for graduate students

At the graduate level, instructors may report grades from 4.0 to 1.7 in 0.1 increments. Grades below 1.7 are recorded as 0.0 by the Registrar and do not count toward residency, total credit count, or grade and credit requirements. A minimum grade of 2.7 is required in each course that counts toward satisfying the Graduate School requirement for 18 hours of coursework numbered 500-700 at the master's level. A minimum cumulative GPA of 3.0 is required for graduation. Numerical grades may be considered equivalent to letter grades as follows:

Graduate grading scale
Letter grade Numerical grade
A 4.0 – 3.9
A- 3.8 – 3.5
B+ 3.4 – 3.1
B 3.0 – 2.9
B- 2.8 – 2.5
C+ 2.4 – 2.1
C 2.0 – 1.7
E 1.6 – 0.0

Additional information on grades may be obtained from the Office of the Registrar.

Other letter grades used

N (No grade). Used only for hyphenated courses (courses requiring more than one quarter to be completed) and graduate courses numbered 600 (Independent Study or Research), 601 (Internship), 700 (Master's Thesis). An N grade indicates that satisfactory progress is being made, but evaluation depends on completion of the next segment.

I (Incomplete). An incomplete is given only when the student has been in attendance and has done satisfactory work within two weeks of the end of the quarter and has furnished proof satisfactory to the instructor that the work cannot be completed because of illness or other circumstances beyond the student's control.

For undergraduate students: To obtain credit for the course, a student must successfully complete the work by the last day of the next quarter in residence. (Students should never re-register for the course as a means of removing the Incomplete.) An Incomplete grade not made up by the end of the next quarter will be converted to the grade 0.0 by the Registrar unless the instructor has indicated, when assigning the Incomplete grade, that a grade other than 0.0 should be recorded if the Incomplete work is not completed. The original Incomplete grade is not removed from the permanent record. An instructor may approve an extension of the Incomplete removal deadline. Such an extension must be received, in writing, at the Grade Recording Information Office, not later than the last day of the quarter following the quarter in which the Incomplete grade is assigned. Extensions, which may be granted for up to three additional quarters, must be received before the Incomplete has been converted into a failing grade. In no case can an Incomplete received by an undergraduate be converted to a passing grade after a lapse of one year.

For graduate students: To obtain credit for the course, a student must successfully complete the work and the instructor must submit a grade. In no case may an Incomplete be converted into a passing grade after a lapse of two years. An incomplete received by the graduate student does not automatically convert to a grade of 0.0 but the "I" will remain as a permanent part of the student's record.

S: Satisfactory grade for courses taken on a satisfactory/not satisfactory basis. For undergraduate students an S grade is automatically converted from a numerical grade of 2.0 or above. For graduate students numerical grades of 2.7 or above are converted to S. Undergraduate courses so graded can only be used as free electives and cannot be used to satisfy a university, college, campus or department course requirement. Graduate courses graded with S cannot be used to satisfy the requirement of a minimum of 18 credits of course work with numerical grades earned in approved 500- level courses and 400-level courses. The grade of S is not computed in the grade-point average calculation.

NS: Not Satisfactory grade for courses taken on a satisfactory/not satisfactory basis. For undergraduate students a grade less than 2.0 is converted to NS. For graduate students a grade less than 2.7 is converted to NS. NS is not included in the grade-point average calculation. No credit is awarded for courses in which an NS grade is received.

CR: Credit awarded in a course offered on a credit/no credit basis only. The minimum performance level required for a CR grade is determined, and the grade is awarded directly, by the instructor. CR is not computed in the grade-point average calculation.

NC: No Credit awarded in a course offered on a credit/no credit basis only. The grade is awarded directly by the instructor and is not included in a grade-point average calculation.

HW: Grade assigned when an undergraduate is allowed a hardship withdrawal from a course after the seventh week of the quarter. It is not computed in grade-point average calculation, and no credit is earned.

Nontraditional grading options

Credit/no credit only

With appropriate departmental review and approval, a course may be offered only on a credit/no credit basis. The standard for granting credit under this option is the demonstration of competence in the material of the course.

Satisfactory/not satisfactory grading option

For undergraduate students: Certain students are eligible to choose that a limited number of their courses be graded satisfactory/not satisfactory rather than with regular numerical grades. Any student who wishes to register for a course on a satisfactory/not satisfactory basis should check first with his or her adviser to determine restrictions and eligibility because colleges and departments vary in their rules concerning this grading option. In no case is a student allowed to register for more than 6 credits (or for one course, if that course is offered for more than 6 credits) on a satisfactory/not satisfactory basis in a given quarter. No more than 25 satisfactory/not satisfactory credits may be applied to a four-year undergraduate degree. Such courses may not be used to satisfy university, college, or departmental course requirements (i.e., may be applied only to the elective component of a degree). Generally, a student may not switch to or from satisfactory/not satisfactory grading for a particular course after the first week of the quarter. Only students in good academic standing (i.e., not on academic warning or probation) are eligible for the S/NS grading option. Veterans should check with the Office of Veterans Affairs before requesting S/NS grading option. It should be noted that the possibility of future objective evaluation of the student's total academic record is reduced by the extent to which the record includes course work that is evaluated by a grading system other than the numerical system. A student should be aware that he or she may jeopardize future educational opportunities, particularly for graduate or postbaccalaureate study, when other systems of performance evaluation are used.

For graduate students: With the approval of the graduate program coordinator or supervisory committee chairperson, a graduate student may elect to be graded S/NS in any numerically graded course for which he or she is eligible. The choice must be indicated at the time of registration or by the tenth day of the quarter. Note, however, that a minimum of 18 credits of coursework for which numerical grades are assigned is required in approved courses at the 500-level and the 400-level in order to qualify for the master's degree.