Weighted GPA Calculator Formula

Understand the math behind the weighted gpa calculator. Each variable explained with a worked example.

Use the Weighted GPA Calculator

Formulas Used

Weighted GPA

weighted_gpa = (weighted1 + weighted2 + weighted3) / total_credits

Unweighted GPA

unweighted_gpa = (grade1 * credits1 + grade2 * credits2 + grade3 * credits3) / total_credits

GPA Boost from Weighting

gpa_boost = (weighted1 + weighted2 + weighted3) / total_credits - (grade1 * credits1 + grade2 * credits2 + grade3 * credits3) / total_credits

Variables

VariableDescriptionDefault
grade1Course 1 Grade Points3.5
level1Course 1 Level0
credits1Course 1 Credits3
grade2Course 2 Grade Points3
level2Course 2 Level1
credits2Course 2 Credits4
grade3Course 3 Grade Points4
level3Course 3 Level0.5
credits3Course 3 Credits3
weighted1Derived value= (grade1 + level1) * credits1calculated
weighted2Derived value= (grade2 + level2) * credits2calculated
weighted3Derived value= (grade3 + level3) * credits3calculated
total_creditsDerived value= credits1 + credits2 + credits3calculated

How It Works

How to Calculate Weighted GPA

A weighted GPA rewards students for taking challenging courses by adding bonus points.

Formula

Weighted GPA = Sum of ((Grade + Level Bonus) x Credits) / Total Credits

  • Regular courses: +0.0
  • Honors courses: +0.5
  • AP/IB courses: +1.0

    • An A in an AP course is worth 5.0 on a weighted scale versus 4.0 on a standard scale.

    Worked Example

    Three courses: Regular (3.5, 3 cr), AP (3.0, 4 cr), Honors (4.0, 3 cr).

    grade1 = 3.5level1 = 0credits1 = 3grade2 = 3level2 = 1credits2 = 4grade3 = 4level3 = 0.5credits3 = 3
    1. 01Course 1 (Regular): (3.5 + 0.0) x 3 = 10.5
    2. 02Course 2 (AP): (3.0 + 1.0) x 4 = 16.0
    3. 03Course 3 (Honors): (4.0 + 0.5) x 3 = 13.5
    4. 04Total weighted points: 10.5 + 16.0 + 13.5 = 40.0
    5. 05Total credits: 3 + 4 + 3 = 10
    6. 06Weighted GPA = 40.0 / 10 = 4.00

    Frequently Asked Questions

    What is the maximum weighted GPA?

    On a 5.0 weighted scale, the maximum is 5.0, achieved by earning all A grades in AP/IB courses.

    Do colleges use weighted or unweighted GPA?

    Most colleges consider both. They often recalculate your GPA using their own scale.

    Why does weighted GPA matter?

    Weighted GPA rewards students who challenge themselves with harder courses. Two students with the same unweighted GPA may differ in weighted GPA.

    Ready to run the numbers?

    Open Weighted GPA Calculator