GPA Calculator

Calculate your semester or cumulative GPA on a 4.0 scale. Free GPA calculator that weights courses by credit hours.

A GPA (Grade Point Average) calculator computes your weighted semester GPA based on up to three courses, each with its own credit hours and grade on a 4.0 scale. The calculator multiplies each grade value by its course credits to get "grade points," sums all grade points and all credits, then divides — producing a credit-weighted average that reflects the relative importance of each course. A 3-credit course counts three times as much as a 1-credit course in the final GPA. This tool is useful for high school and college students tracking their academic performance, projecting what grades they need to reach a target GPA, or understanding how dropping or adding a course affects their average. The 4.0 scale is standard across most U.S. institutions. All calculations are private and run in your browser.

course1

course2

course3

Result

3.67

Breakdown

Total Credits
10
Total Points
36.70

About GPA Calculator

What is gpa calculator?

A GPA (Grade Point Average) calculator computes your weighted semester GPA based on up to three courses, each with its own credit hours and grade on a 4.0 scale. The calculator multiplies each grade value by its course credits to get "grade points," sums all grade points and all credits, then divides — producing a credit-weighted average that reflects the relative importance of each course. A 3-credit course counts three times as much as a 1-credit course in the final GPA. This tool is useful for high school and college students tracking their academic performance, projecting what grades they need to reach a target GPA, or understanding how dropping or adding a course affects their average. The 4.0 scale is standard across most U.S. institutions. All calculations are private and run in your browser.

How to use this calculator

  1. Enter your course 1 credits.
  2. Enter your course 1 grade (0-4).
  3. Enter your course 2 credits.
  4. Enter your course 2 grade (0-4).
  5. Enter your course 3 credits.
  6. Enter your course 3 grade (0-4).
  7. Click the "Calculate" button.
  8. View your result instantly — the main result is displayed prominently at the top with a detailed breakdown below it.

When to use this calculator

  • Calculating semester GPA from current course grades and credits
  • Projecting what grade you need in a course to reach a target GPA
  • Comparing weighted versus unweighted GPA
  • Understanding how credit hours affect the importance of each course grade
  • Tracking academic progress toward scholarship or program eligibility requirements

How the calculation works

GPA is a weighted average: total grade points divided by total credits. For each course, grade points = credits × grade_value (on a 0–4 scale). GPA = (credits₁ × grade₁ + credits₂ × grade₂ + credits₃ × grade₃) / (credits₁ + credits₂ + credits₃). For example: a 3-credit A (4.0) contributes 12 points, a 4-credit A− (3.7) contributes 14.8 points, a 3-credit B+ (3.3) contributes 9.9 points. Total = 12 + 14.8 + 9.9 = 36.7 points ÷ 10 credits = 3.67 GPA. The weighted average means a 4-credit course affects your GPA 33% more than a 3-credit course.

Frequently Asked Questions

How is GPA calculated?▼
GPA equals total grade points (grade value times credits) divided by total credits. A 4.0 scale is standard in the U.S. for most schools.
What grade is a 3.0 GPA?▼
A 3.0 GPA corresponds to a B average. Each letter grade maps to a numeric value (A=4, B=3, C=2, D=1, F=0) used in the calculation.

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