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RAPIDCALC • EDUCATION

GPA & CGPA Calculator

Calculate course-weighted GPA, semester-weighted CGPA, or an institution-specific CGPA-to-percentage estimate.

Course grades

Illustrative US-style 4.0 scale. Edit grades and credits to match your college's rules.

Calculation results

Weighted semester GPA3.67Out of 4.0
Total graded credits10
Weighted quality points36.7

Instant illustrative results. Official grade-point values, excluded courses, repeats and rounding depend on your institution.

CALCULATOR GUIDE

Understand GPA & CGPA Calculator

Explore the formula, worked examples and practical explanations behind this calculator.

What Is a GPA Calculator?

Grade point average (GPA) summarizes academic performance by expressing a set of course grades as numerical points. Many US colleges use a 4.0 scale, where A typically equals 4.0 and F equals 0. Other countries, institutions and degree programs may use different grading scales. Always follow the grading policy of your school.

How to Use This Calculator

  1. Enter the values shown in the calculator above.
  2. Select the appropriate operation or measurement convention where applicable.
  3. Review the highlighted result and the supporting breakdown.
  4. Change one input at a time to compare realistic scenarios.
  5. Refer to the examples and limitations below when interpreting the result.

Formula

GPA = sum of (grade points × course credits) ÷ total course credits.

Step-by-Step Example

For A (3 credits), B+ (3 credits) and A− (4 credits), GPA = (4×3 + 3.3×3 + 3.7×4)/10 = 3.67.

How to calculate credit-weighted GPA

Convert each letter grade into the corresponding grade-point value. Multiply the grade points by that course’s credit hours, add all of those products, and divide by total attempted graded credits. A four-credit course normally influences GPA more than a one-credit course. Pass/fail courses may be excluded depending on your institution.

Worked GPA example

Suppose a student receives an A in a three-credit course, a B+ in another three-credit course, and an A− in a four-credit course. Using A = 4.0, B+ = 3.3 and A− = 3.7, the quality points are 12.0, 9.9 and 14.8. Total quality points = 36.7 and total credits = 10, giving a GPA of 3.67.

Unweighted versus weighted GPA

An unweighted GPA typically caps letter-grade points at 4.0. Some schools offer enhanced values for honors or advanced courses, often on a 5.0 or other scale. There is no globally standardized 5.0 mapping. The optional 5.0 mode in this tool adds one point to passing grades for illustration and should not replace your institution’s official policy.

Semester GPA and cumulative GPA

Semester GPA uses courses completed in one term. A cumulative GPA covers eligible courses across several terms. To combine semesters correctly, weight each semester’s GPA by its graded credits rather than simply averaging the semester GPA figures, especially when the credit totals differ.

GPA limitations and international differences

Some schools count A+ as 4.3, others as 4.0. Plus/minus values, failed repeats, withdrawn courses and transfer credits also vary. This tool uses a common reference mapping (A and A+ = 4.0; A− = 3.7; B+ = 3.3). For applications or scholarships, use the official transcript GPA where provided.

Three Ways to Calculate GPA and CGPA

Mode 1: Course GPA (Standard 4.0 Scale)

Choose GPA to combine letter grades and course credits into a credit-weighted semester average. Each course contributes quality points equal to its grade-point value multiplied by its graded credits. Sum quality points and divide by total graded credits. The example A (3 credits), B+ (3 credits) and A− (4 credits) produces 36.7 quality points over 10 credits: 3.67 GPA. This page uses an illustrative plus/minus reference table; individual colleges may award different values for A+, B+, or other grades.

Mode 2: Semester-Based CGPA (4.0 or 10.0)

Choose CGPA for a weighted cumulative average across semesters. Set a single consistent grading scale (4.0 or 10.0), then enter the GPA and graded credits for every semester. More credits mean a semester has proportionally more influence. For four equal-credit semesters with GPAs of 8.0, 8.5, 9.0 and 8.5, the cumulative result is 8.50 out of 10.

If the semester credits are unequal, take a weighted rather than simple mean. For example, semester 1 GPA 8.0 with 16 credits and semester 2 GPA 9.0 with 24 credits gives (8×16 + 9×24) ÷ 40 = 8.60 CGPA. Treat GPAs from different institutions or scales separately unless an official conversion has been provided.

Mode 3: CGPA to Percentage

Choose CGPA to % only when your institution has issued a conversion equation. Some institutions specify an illustrative multiplier of 9.5 for certain 10-point systems; others use 10, a table, or a different equation. The calculator lets you enter a custom factor and offset to model a published linear rule. For example, if your own university requires CGPA × 9.5, a CGPA of 8.5 gives 80.75%. That formula is not universal and is not valid for every 10-point or 4-point grading system.

For a policy of Percentage = CGPA × F + B, enter F as the factor and B as the offset, including a negative offset if specified. When your institution uses a conversion table, variable ranges, or a non-linear formula, this simple mode will not reproduce the official result. Use the published table instead. An illustrative output is not an official transcript conversion.

GPA versus CGPA: What Is the Difference?

Feature GPA CGPA
Typical period One term/semester Several semesters
Inputs Course grades and credits Semester GPAs and semester credits
Method Quality points ÷ course credits Weighted term GPAs ÷ cumulative credits
Scale Often US-style 4.0 May be 4.0, 10.0 or another system
Best use Evaluate a single term Track progress toward graduation

A course-based cumulative GPA may differ from averaging rounded semester GPAs because official transcripts can retain greater precision. Repeated courses, withdrawals, pass/fail grading and grade replacement policies can also change the denominator and quality points.

Five Common GPA and CGPA Calculation Mistakes

  1. Ignoring credits. A four-credit course and a one-credit course should not normally count equally.
  2. Mixing grading scales. A 3.5/4.0 and an 8.5/10.0 cannot be averaged without an institution-approved equivalency method.
  3. Assuming all plus/minus grades match. Letter-to-point mappings are not globally standardized.
  4. Using a generic percentage multiplier. Many institutions do not use CGPA × 9.5; always verify their stated policy.
  5. Including excluded courses. Some schools omit pass/fail credits, repeats or non-credit courses when calculating GPA.

Which Result Should You Use?

Use course GPA to understand current-semester performance. Use CGPA to evaluate cumulative academic standing where semester GPAs are on one consistent scale and their graded credits are known. Use a percentage only when required for an application and the conversion method is confirmed by your university or the receiving organization. For official admissions, scholarships or credential evaluation, defer to the institution’s transcript and conversion documentation.

COMMON QUESTIONS

Frequently Asked Questions

Clear answers to help you understand your results.

01How is GPA calculated?
Multiply each grade point by course credits, sum the results and divide by total credits.
02Does GPA use credit hours?
Yes. Higher-credit courses contribute proportionally more to a credit-weighted GPA.
03What does A− equal?
This reference scale treats A− as 3.7 grade points.
04What does B+ equal?
This reference scale treats B+ as 3.3 grade points.
05Is GPA the same around the world?
No. Institutions use different scales, policies and grading standards.
06How do I calculate a semester GPA?
Enter only that semester’s eligible graded courses and credit hours.
07Can I calculate cumulative GPA?
Enter all eligible courses, or combine quality points and credits from past terms.
08Are pass/fail courses counted?
That depends on school policy; many institutions exclude them from GPA.
09Is 5.0 weighting standardized?
No. Different schools assign different bonus points for advanced classes.
10How can I calculate CGPA from semesters?
Multiply each semester GPA by its graded credits, add the weighted totals, and divide by combined credits. Use one consistent scale.
11Can I calculate CGPA on a 10-point scale?
Yes. Select 10.0 in the CGPA tab and enter semester grade points and credit counts.
12Is CGPA multiplied by 9.5 always the percentage?
No. There is no universal conversion. The 9.5 factor applies only when your institution explicitly uses it.
13Can I combine a 4.0 GPA and a 10.0 CGPA?
Not directly. Their scales are different. Obtain an official equivalency method before combining them.
14Why might my result differ from a transcript?
Official policies may differ for plus/minus grades, repeats, exclusions and rounding.