Oklahoma State University GPA Calculator & Percentage Converter

Q: What GPA scale does Oklahoma State University use?

OSU uses a straight 4.0 grade-point scale with no plus or minus grades. A = 4, B = 3, C = 2, D = 1, and F = 0 grade points per semester credit hour, per University Academic Regulation 6.3.

Q: Does OSU use plus and minus grades like A- or B+?

No. Oklahoma State University's official grade-point system assigns only whole-number values to A, B, C, D and F. There are no A+, A-, B+, or similar plus/minus grade points in the OSU GPA.

Q: How do I convert my OSU GPA to a percentage?

The standard conversion is Percentage = GPA × 25, which equals (GPA ÷ 4.0) × 100. For example, an OSU GPA of 3.5 converts to 87.5%.

Q: Which grades are excluded from my OSU GPA?

Grades such as P (Pass), W (Withdrawal), I (Incomplete) and similar non-graded marks carry no grade points and are not included in the GPA calculation. Only A, B, C, D and F count toward GPA hours and grade points.

Tool 1

OSU GPA Calculator

Add each course with its letter grade and credit (semester) hours. Calculation uses OSU's official grade-point values.

Add Your Courses

OSU uses a straight 4.0 scale — only A, B, C, D and F carry grade points. There are no plus/minus grades.

Course / Subject

Letter Grade

Credit Hours

Course	Grade	Credits	Actions

Convert to Percentage →

The Math

How OSU GPA Is Calculated

OSU multiplies each grade point by credit hours to get grade points earned, then divides total grade points by total GPA hours.

OSU GPA Formula

\[ \text{GPA} = \frac{\displaystyle\sum \text{Grade Points}}{\displaystyle\sum \text{GPA Hours}} = \frac{\displaystyle\sum (\text{Grade Point Value} \times \text{Credit Hours})}{\displaystyle\sum \text{Credit Hours}} \]

Grade PointsGrade point value × credit hours for each course

GPA HoursTotal graded credit hours (excludes P, W, I, etc.)

📝 Worked Example

A three-course example using the OSU 4.0 scale:

Course	Credit Hours	Grade	Grade Point	Grade Points
ENGL 1113	3.0	A	4.00	3 × 4.00 = 12.00
MATH 1513	3.0	B	3.00	3 × 3.00 = 9.00
HIST 1103	3.0	C	2.00	3 × 2.00 = 6.00
Total	9.0	—	—	27.00

Plugging into the formula:

\[ \text{GPA} = \frac{27.00}{9.0} = \mathbf{3.00} \]

Tool 2

OSU GPA to Percentage Converter

Convert your 4.0-scale OSU GPA to an equivalent percentage instantly.

Convert GPA → Percentage

Enter any OSU GPA between 0.0 and 4.0.

Your OSU GPA

The Conversion Formula

OSU uses a 4.0 scale, so:

\[ \text{Percentage} = \text{GPA} \times 25 \quad \text{or equivalently} \quad \text{Percentage} = \left(\frac{\text{GPA}}{4.0}\right) \times 100 \]

Example: If your GPA is 3.5, then Percentage = 3.5 × 25 = 87.50%.

Reference

Official OSU Grading Scale

Grade-point values used to compute semester and cumulative GPA, sourced from OSU University Academic Regulation 6.3 (Grade-Point System).

📘 OSU Grade Points (4.0 Scale)

Note: OSU uses a straight 4.0 scale — no plus or minus grades carry grade points.

Letter Grade	Grade Point	Definition
A	4.00	Excellent
B	3.00	Good
C	2.00	Average / Passing
D	1.00	Below Average / Passing
F	0.00	Failure

📌 Grades Excluded from GPA

Marks such as P (Pass), W (Withdrawal), I (Incomplete), AU (Audit), N, P/NP, and similar non-letter grades carry no grade points and are not included in GPA hours, so they do not affect your GPA.

Only A, B, C, D, and F count toward both grade points and GPA hours. Some courses may be excluded under University and State Regents policy and the Academic Forgiveness provisions.

Got Questions?

OSU GPA — Frequently Asked Questions

What GPA scale does Oklahoma State University use?

OSU uses a straight 4.0 grade-point scale with no plus or minus grades: A = 4, B = 3, C = 2, D = 1, and F = 0 grade points per semester credit hour, per University Academic Regulation 6.3.

Does OSU use plus and minus grades like A− or B+?

No. The official OSU grade-point system assigns only whole-number values to A, B, C, D and F. There are no A+, A−, B+ or similar plus/minus grade points in the OSU GPA.

How do I convert my OSU GPA to a percentage?

Use Percentage = GPA × 25 (equivalent to (GPA ÷ 4.0) × 100). For example, a GPA of 3.5 converts to 87.5%.

Which grades are excluded from my OSU GPA?

Grades such as P (Pass), W (Withdrawal) and I (Incomplete) carry no grade points and are not included in GPA hours, so they don't affect your GPA. Only A, B, C, D and F count.

Reference: All grading data verified against OSU University Academic Regulations 6.3 — Grade-Point System.