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GPA Calculator

Enter each course, its credit value, and grade, then choose a grading scale to estimate your GPA or CGPA. This is useful for planning, but always compare it with your school policy.

What this calculator does

Use this calculator to plan a term GPA or compare course-credit scenarios. It is not an official transcript conversion tool, so the selected scale should match your school, registrar, scholarship rule, or transcript policy.

Favorite and recently used calculator links are stored only in your browser.

Enter courses

Common US 4.0 letter-grade GPA scale.
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Result

Enter values and run the calculator to see your result.

Formula-based estimate, not an AI decision.

Compare this result with your syllabus, grading scale, attendance policy, or official school system.

Saved scenarios stay in this browser. Do not enter student ID, official transcript numbers, private school records, or sensitive personal information.

GPA formula

GPA = sum(grade point x credits) / sum(credits)

Each letter grade is converted to the grade point from the selected grading scale, multiplied by course credits, and divided by total credits. Grade points and rounding rules can vary by school.

Step-by-step example

  1. Biology: A, 3 credits = 12 quality points
  2. History: B, 3 credits = 9 quality points
  3. Total quality points = 21
  4. Total credits = 6
  5. GPA = 21 / 6 = 3.50

When this helps

  • Use it when planning a term GPA from several courses and credit values.
  • Use it to compare how a high-credit course affects GPA more than a low-credit course.
  • Use it before scholarship, graduation, or application planning, then verify the official scale.

Common GPA mistakes

  • Using the wrong grade point scale for your school or country.
  • Entering course percentages directly when the scale requires letter grades or grade points.
  • Including pass/fail or audited courses that do not affect GPA.
  • Forgetting that repeated courses may replace or average old grades depending on policy.
  • Using the estimate as an official transcript conversion.

How to use the result

Use the GPA estimate for planning, not official reporting. If the result affects applications, graduation, scholarships, or probation, compare it with the registrar or official handbook.

Two realistic student situations

A student with an A in a 1-credit lab and a C in a 4-credit lecture may feel the A balances the C, but the lecture usually has much more GPA impact.

Another student transferring between schools may see the same percentage map to different grade points. The calculator can estimate scenarios, but the receiving institution decides the official conversion.

Choose inputs carefully

Use credits or units exactly as your school counts them. A course with more credits should carry more weight in GPA.

Choose the grade scale that matches the official policy. If your school uses a 4.3, 4.5, 5.0, percentage, or 10-point system, do not assume a 4.0 scale.

  • Course credit or unit value
  • Grade or grade point for each course
  • Official grading scale and rounding rule

Which GPA scale should I use?

Pick the scale that appears in your syllabus, transcript guide, registrar page, or school handbook. The same letter grade can map to different grade points across countries and institutions.

If your school does not publish a direct conversion, use the calculator for planning only and keep the official scale as the final authority.

Which GPA scale should I use?
ScaleCommon useImportant note
US 4.0Many US schoolsLetter cutoffs vary by school
US 4.3Some schools with A+ weightingA+ may carry extra value
Korea 4.5Many Korean universitiesConversion rules are not universal
Korea 4.3Some Korean universitiesCheck your transcript policy
India 10-point CGPASome Indian institutionsPercentage conversion may differ
UK percentageUK-style marksNot automatically the same as GPA
Custom scaleLocal or school-specific rulesUse only if you know the official points

When the result can differ

GPA can differ when schools handle repeats, withdrawals, pass/fail courses, honors weighting, transfer credits, or rounding differently.

Check the transcript policy, repeated-course policy, pass/fail rule, credit units, grade point table, and rounding method before relying on the number.

GPA FAQ

Which GPA scale does this use?

You can choose a supported scale such as US, Korean, Indian CGPA, UK percentage classification, or a custom numeric scale. Grade points follow the selected scale.

Can I calculate cumulative GPA?

Yes, if you enter all courses you want included with their credits and grades.

Is GPA weighted?

GPA can be weighted or unweighted depending on the school. A weighted GPA may give extra value to honors, AP, IB, advanced, or high-credit courses. StudyCalc AI uses the grade points and credits you enter, so match your official scale.

What is the difference between GPA and CGPA?

GPA often refers to a term or selected set of courses, while CGPA usually refers to cumulative performance across multiple terms. Schools may define these terms differently.

Which scale should I choose: US 4.0, Korea 4.5, or India 10-point CGPA?

Choose the scale used by your institution. If you are comparing systems, treat the result as an estimate and verify any official conversion with the receiving school or registrar.

Does GPA vary by school?

Yes. Some schools use different grade points, weighting, or rounding policies.

Can I use pass/fail grades?

This version supports only letter grades with grade points. Exclude pass/fail courses if they do not affect GPA.

Are my courses saved?

No. Course inputs are processed in the browser and are not stored.

GPA systems vary by school and country. Confirm your institution’s official grading scale before using this result for applications or academic planning.

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