GPA Calculator
What Is a GPA?
GPA stands for Grade Point Average. It is a number that shows your academic performance.
Most schools use a 4.0 scale:
| Letter Grade | Grade Points |
|---|---|
| A+ / A | 4.0 |
| A- | 3.7 |
| B+ | 3.3 |
| B | 3.0 |
| B- | 2.7 |
| C+ | 2.3 |
| C | 2.0 |
| C- | 1.7 |
| D+ | 1.3 |
| D | 1.0 |
| F | 0.0 |
Each grade is converted into grade points. Then those points are averaged based on credit hours.
What Is a GPA Calculator?
A GPA calculator is a tool that:
- Converts letter grades into grade points
- Multiplies them by course credits
- Adds everything together
- Divides by total credits
- Shows your final GPA
Instead of doing the math by hand, the calculator does it instantly and accurately.
The GPA calculator shown above includes:
- Course name field
- Credit input
- Grade dropdown
- Course type (Regular, Honors, AP/IB/College)
- Automatic calculation of unweighted and weighted GPA
- Total credits earned
- Add and remove course options
It is built for flexibility and accuracy.
How to Calculate GPA (Step-by-Step)
Here is the simple formula used in the calculator:
Step 1: Convert Grades to Grade Points
Each letter grade has a numeric value (A = 4.0, B = 3.0, etc.).
Step 2: Multiply by Credits
Grade Points × Credit Hours = Total Points for that course
Example:
B (3.0) in a 3-credit course
3.0 × 3 = 9.0 points
Step 3: Add All Points
Add total points from all courses.
Step 4: Divide by Total Credits
Total Grade Points ÷ Total Credits = GPA
That is your unweighted GPA.
What Is Unweighted GPA?
Unweighted GPA does not consider course difficulty.
It uses only the 4.0 scale.
An A in a regular class and an A in an AP class both count as 4.0.
Unweighted GPA shows pure academic performance without bonus weight.
What Is Weighted GPA?
Weighted GPA adds extra points for advanced courses.
In this calculator:
- Honors courses add +0.5
- AP / IB / College courses add +1.0
- Regular courses add 0
Example:
If you earn an A (4.0) in an AP class:
4.0 + 1.0 = 5.0 weighted grade points
This means your weighted GPA can go above 4.0.
Weighted GPA rewards students who take harder classes.
How to Use the GPA Calculator
Using the calculator is simple.
1. Enter Course Name
Type the name of the course (example: Math, Biology, English).
2. Enter Credits
Input the number of credit hours.
You can use decimals like 0.5 if needed.
3. Select Grade
Choose your letter grade from the dropdown menu.
4. Choose Course Type
Select:
- Regular
- Honors (+0.5)
- AP/IB/College (+1.0)
5. Add More Courses
Click + Add Course to enter more classes.
6. Click Calculate GPA
The tool will show:
- Unweighted GPA
- Weighted GPA
- Total Credits Earned
7. Reset If Needed
Click Reset to clear everything and start over.
The calculator ensures:
- You cannot remove all course rows
- GPA shows two decimal places
- Invalid entries are ignored
- You must enter at least one valid course
Example GPA Calculation
Let’s say you have:
- Math: A (4.0), 1 credit, Regular
- Science: A-, 1 credit, Honors
- History: B+, 1 credit, Regular
- English: A, 1 credit, AP
Unweighted GPA
(4.0 + 3.7 + 3.3 + 4.0) ÷ 4 = 3.75
Weighted GPA
Math: 4.0
Science: 3.7 + 0.5 = 4.2
History: 3.3
English: 4.0 + 1.0 = 5.0
(4.0 + 4.2 + 3.3 + 5.0) ÷ 4 = 4.13
This shows how advanced courses increase your weighted GPA.
Why GPA Matters
Your GPA can affect:
- College admissions
- Scholarships
- Academic honors
- Financial aid
- Internship opportunities
- Graduate school applications
Even employers sometimes ask for GPA, especially for entry-level jobs.
Keeping track of your GPA helps you:
- Set academic goals
- See improvement over time
- Understand where you need to improve
- Plan future coursework
Common GPA Mistakes Students Make
- Forgetting to multiply by credits
- Ignoring course weight
- Using wrong grade values
- Mixing weighted and unweighted numbers
- Rounding too early
A GPA calculator prevents these errors.
Tips to Improve Your GPA
- Focus on high-credit courses first
- Retake low-grade classes if allowed
- Take advanced courses if you can handle them
- Meet with academic advisors
- Build strong study habits
Small improvements in each class can raise your overall GPA.
Benefits of Using an Online GPA Calculator
- Fast and accurate results
- No manual math
- Supports multiple courses
- Calculates weighted and unweighted GPA
- Easy to reset and reuse
- Works for high school and college students
It saves time and reduces stress.