GPA Calculator
GPA Calculator averages a comma-separated list of grade-point values on a 0–4 scale. It works for an unweighted check when every listed course contributes equally. Official GPAs are often credit-weighted and may use institution-specific values for plus/minus grades, repeats, transfer credits, or honors courses, so compare the simple result with the registrar's published method.
Runs locally — files stay on your deviceWhat is the GPA for 3.5, 4.0, and 3.0?
The simple GPA is 3.50.
Formula: (3.5 + 4.0 + 3.0) ÷ 3 = 3.50
A simple GPA is an arithmetic average
Add the grade points and divide by the number of grades. This treats a one-credit course and a four-credit course equally. A credit-weighted GPA instead multiplies each grade by its credits, sums quality points, and divides by total attempted credits.
How it works
Enter numeric grade points separated by commas. Check that each value belongs to the same scale and decide whether equal weighting matches the purpose of your estimate.
Key concepts
Simple versus credit-weighted GPA
A simple average gives every course one vote. Official calculations commonly weight a course by its attempted credits.
The scale must be consistent
A 4.0 can mean the maximum on one scale and something else on a weighted honors scale.
When to use it
- Average equally weighted grade-point values quickly.
- Check a small set of course results on one scale.
- Compare a hypothetical list of unweighted grades.
When not to use it
- Do not use a simple mean when courses carry different credits.
- Do not mix 0–4, 0–5, percentage, and letter-grade systems.
- Do not treat the result as an official transcript calculation.
Worked examples
Three equal courses
- Input
3.5, 4.0, 3.0- Expected output
3.50
The sum 10.5 is divided by three.
Repeated equal values
- Input
4, 4, 4- Expected output
4.00
The mean equals the shared value.
Different course credits
- Input
A=4.0 in one credit; B=3.0 in four credits- Expected output
Simple input gives 3.50, but credit-weighted GPA is 3.20
This illustrates when the simple calculator is not the official method.
Common mistakes
Ignoring course credits
A high grade in a short course may receive too much influence. Correction: Use a credit-weighted method for official-style GPA.
Entering letter grades
The field expects numeric grade points. Correction: Convert letters using the institution's published scale first.
Mixing weighted and unweighted values
The average no longer represents one coherent scale. Correction: Choose one scale and label the estimate clearly.
Best practices
- Use values from the same grade-point scale.
- Check whether credits, repeats, and exclusions affect the official GPA.
- Keep additional decimals for calculation and round only for display.
Related operations and differences
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Limitations and privacy
- All entered values receive equal weight.
- Institutional policies for repeated, pass/fail, transfer, or honors courses are not modeled.
- The page does not convert letter grades automatically.
All grades are calculated locally in this browser. No student records are uploaded.
Frequently asked questions
Is this GPA credit-weighted?
No. It calculates a simple average of the supplied grade points.
Can I enter letter grades?
No. Convert them using the relevant institution's scale first.
Can the calculator use a weighted 5.0 scale?
Only if every entered value consistently belongs to that scale; the page does not reinterpret it.
Why might my official GPA differ?
Credits, repeats, exclusions, plus/minus values, and institutional rounding can change the official result.