How to Use This Tool
- Enter the name of a course (optional, for your own reference).
- Enter the number of credit hours for that course.
- Select the letter grade you earned or expect to earn.
- Select "Add Course" for each additional course, or remove a row with the trash icon.
- Your GPA and total credit hours update automatically as you type.
How It Works
Each letter grade is converted to a quality point value on a 4.0 scale (A = 4.0, A- = 3.7, B+ = 3.3, and so on down to F = 0.0). Every course’s quality points are multiplied by its credit hours, all of those totals are added together, and the sum is divided by your total credit hours to produce your GPA.
Example
A student takes three courses in a semester:
Biology (4 credits, A), English (3 credits, B+), Art (2 credits, B).
Quality points: (4.0 × 4) + (3.3 × 3) + (3.0 × 2) = 16 + 9.9 + 6 = 31.9. Total credits: 4 + 3 + 2 = 9. GPA = 31.9 / 9 = 3.54.
Benefits
- See your GPA update instantly as you add courses.
- Plan ahead by testing "what if" grades before finals.
- No account or spreadsheet required — works on any device.
Important Notes
This calculator provides an informational estimate using the standard unweighted 4.0 scale. It does not account for school-specific weighting (such as extra points for AP or honors courses), pass/fail courses, or grade replacement policies. Always verify your official GPA against your school’s transcript or registrar.