Quick answer
A weighted GPA adds bonus points to harder courses before averaging by credits: Σ (grade points + bonus) × credits ÷ Σ credits. Grades of 4, 3.7 and 3.3 with credits 4, 3, 3 and bonuses 1, 0.5, 0 give a weighted GPA of 4.25 against an unweighted 3.7.
Enter the grade points, credit hours and any extra points for each course, in the same order. The calculator returns weighted and unweighted GPA together.
Related tools: Weighted Grade Calculator: Course grade from scores and their weights. GPA Calculator: Calculate your GPA from letter grades and credit hours. Grade Curve Calculator: Apply a flat or proportional curve to a set of scores.
How to use the Weighted GPA Calculator
- Type grade points per course (4.0 scale), for example 4, 3.7, 3.3.
- Type credits per course, for example 4, 3, 3.
- Type extra points per course (e.g. 1 for AP), for example 1, 0.5, 0.
- Press Calculate to see the result, and use Reset to start again.
| Input | What to enter | Allowed values |
|---|---|---|
| Grade points per course (4.0 scale) | Text, such as 4, 3.7, 3.3 | — |
| Credits per course | Text, such as 4, 3, 3 | — |
| Extra points per course (e.g. 1 for AP) | Text, such as 1, 0.5, 0 | — |
Formula and method
Formula
weighted GPA = Σ (points + bonus) × credits ÷ Σ credits
IEEE-754 double precision; shown to the decimals indicated.
Schools weight courses differently, so enter the bonus your school uses.
Worked examples
These examples are verified: each one is an automated test case that the live calculator must reproduce exactly.
Example 1
Inputs: Grade points per course (4.0 scale) = 4, 3.7, 3.3; Credits per course = 4, 3, 3; Extra points per course (e.g. 1 for AP) = 1, 0.5, 0.
| Result | Value |
|---|---|
| Weighted GPA | 4.25 |
| Unweighted GPA | 3.7 |
Example 2
Inputs: Grade points per course (4.0 scale) = 4, 4, 3; Credits per course = 3, 3, 4; Extra points per course (e.g. 1 for AP) = 0, 0, 0.
| Result | Value |
|---|---|
| Weighted GPA | 3.6 |
| Unweighted GPA | 3.6 |
The first line is the headline result (weighted GPA). Below it the weighted GPA Calculator lists unweighted GPA, which describe the same case from other angles. IEEE-754 double precision; shown to the decimals indicated.
The worked example
Course 1: (4 + 1) × 4 = 20. Course 2: (3.7 + 0.5) × 3 = 12.6. Course 3: 3.3 × 3 = 9.9. The total is 42.5 over 10 credits, so the weighted GPA is 4.25. Without bonuses the sum is 37 over 10 credits, so the unweighted GPA is 3.7.
Know your school's scale
A common pattern adds 1.0 for AP or IB and 0.5 for honors, but some districts cap the weighted GPA, and colleges often recalculate on their own unweighted scale. Use your school's bonus values and treat the result as an estimate.
What happens with invalid input
These messages are produced by the calculator itself, so you know what to fix.
- Credits per course: entering "3" shows "Enter the same number of values in every list." beside that field and no result.
- Grade points per course (4.0 scale): left empty shows "Enter grade points per course (4.0 scale)." beside that field and no result.
Choosing between the Weighted GPA Calculator and similar calculators
Each row shows what a related calculator on this site asks for and what it returns, so you can pick the one that matches your question.
| Calculator | You enter | It returns |
|---|---|---|
| [Weighted Grade Calculator](/education/weighted-grade-calculator/) | scores and weights | Weighted grade |
| [GPA Calculator](/education/gpa-calculator/) | letter grades and credit hours | Your GPA |
| [Grade Curve Calculator](/education/grade-curve/) | scores, score the top student should get and curve | Curved scores |
| [Class Rank Percentile Calculator](/education/class-rank-percentile-calculator/) | your rank and class size | Percentile |
| [Grade Calculator](/education/grade-calculator/) | points earned and points possible | Grade |
Assumptions and limitations
- Lists must be the same length
If a required value is empty, not a number, or outside its allowed range, the form marks that field with a message and shows no result instead of a misleading number. The automated checks deliberately try invalid entries for credits per course and grade points per course (4.0 scale) to confirm this.
Frequently asked questions
Can a weighted GPA exceed 4.0?
Yes, which is the point of the bonus points. Here the example reaches 4.25.
Do colleges use weighted GPA?
Practices vary; many recalculate or look at both. Check each college's admissions page.
What if I do not know the credits?
Use equal credits such as 1 for every course; the weighting then depends only on grades and bonuses.
What does the Weighted GPA Calculator calculate?
GPA with extra points for honors or advanced courses. It returns Weighted GPA and Unweighted GPA.
What formula does the Weighted GPA Calculator use?
weighted GPA = Σ (points + bonus) × credits ÷ Σ credits. Schools weight courses differently, so enter the bonus your school uses.
What do I need to enter in the weighted GPA Calculator?
You enter Grade points per course (4.0 scale), Credits per course and Extra points per course (e.g. 1 for AP).
What is an example of a weighted GPA result?
With grade points per course (4.0 scale) 4, 3.7, 3.3, credits per course 4, 3, 3 and extra points per course (e.g. 1 for AP) 1, 0.5, 0, the weighted GPA is 4.25.
Related calculators
- Weighted Grade Calculator — Course grade from scores and their weights.
- GPA Calculator — Calculate your GPA from letter grades and credit hours.
- Grade Curve Calculator — Apply a flat or proportional curve to a set of scores.
- Class Rank Percentile Calculator — Percentile from class rank and class size.
- Grade Calculator — Percentage grade from points earned and points possible.
- Final Grade Calculator — The score needed on a final exam to reach a target course grade.
Sources
- OpenStax, Prealgebra 2e (Rice University): fractions, decimals, percents, ratios and rounding
- NIST Special Publication 811, Guide for the Use of the International System of Units (SI)
Content last reviewed 2026-11-04. Formulas and worked examples are checked by automated tests against independently computed values.