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Free GPA Calculator - 4.0 Scale College and High School GPA Tool

Use this free GPA calculator to find your semester and cumulative grade point average on the standard US 4.0 scale. Enter your course grades and credit hours to get an instant GPA calculation, and optionally add your prior GPA and credit hours to see your updated cumulative GPA - no sign-up required.

Course (optional)	Credit hours	Grade

Add my prior cumulative GPA to calculate a new overall GPA

Prior cumulative GPA

Prior total credit hours

Semester GPA

0.00

Credit hours

Quality points

0.0

Cumulative GPA

0.00

What is a GPA calculator and why it matters

A GPA calculator converts your letter grades into grade points, weights them by how many credit hours each course is worth, and averages them into a single grade point average - the number US high schools and colleges use to summarize academic performance. This matters because GPA affects scholarship eligibility, academic standing, transfer applications, and graduate school admissions, and it is not simply an average of your letter grades - a 4-credit course counts more toward your GPA than a 1-credit course. Calculating it by hand across five or six courses, each with different credit weights, is where small arithmetic mistakes creep in, so a reliable GPA calculator matters most right before you need an accurate number for an application or an academic advising meeting.

How this calculator works

This tool uses the standard US 4.0 grade point scale, where each letter grade corresponds to a fixed number of grade points - A equals 4.0, B equals 3.0, and so on, with plus and minus grades adjusted by 0.3. For each course, the calculator multiplies the grade points by the credit hours to get that course's quality points, adds up the quality points across all courses, and divides by the total credit hours to produce your GPA. If you enter a prior cumulative GPA and credit hours, the tool combines your prior quality points with your new semester's quality points and divides by the combined credit hours to produce an updated overall cumulative GPA.

US 4.0 grade point scale

Grade	Points	Grade	Points
A / A+	4.0	C+	2.3
A-	3.7	C	2.0
B+	3.3	C-	1.7
B	3.0	D+	1.3
B-	2.7	D	1.0
		D-	0.7
		F	0.0

Common searches this calculator answers

How do I calculate my GPA on a 4.0 scale?
How do credit hours affect my GPA?
How do I calculate my cumulative GPA after this semester?
What GPA do I need to raise my current GPA to a certain number?
How many grade points is an A-, B+, or C- worth?
How is high school GPA different from college GPA?

How to use it

Enter each course you want included - the course name is optional and just for your own reference.
Enter the credit hours for each course, as listed on your syllabus or transcript.
Select the letter grade you earned or expect to earn in each course.
Click "Add course" for any additional courses beyond the default rows.
Check "Add my prior cumulative GPA" and enter your existing GPA and total credit hours to see your updated overall GPA.

Tips

Double-check your credit hours against your official syllabus - a wrong credit value skews the whole GPA more than a wrong grade does.
Some schools do not use plus/minus grading or cap A+ at 4.0 differently - check your school's official grading policy if your result does not match your transcript exactly.
Use the cumulative GPA option before an academic advising meeting to see your projected overall GPA before the semester's grades are officially posted.
Remove a course with the small button on its row if you want to test how dropping or retaking a class would affect your GPA.
Run the numbers with a slightly lower expected grade in an uncertain course to see a conservative estimate of where you will land.

Frequently asked questions

Is this GPA calculator free to use?

Yes. It is completely free, works in your browser, and does not require any sign-up or download.

Does this calculator work for grading systems outside the US?

No. This tool is built specifically for the standard US 4.0 grade point scale used by most American high schools and colleges. Countries using percentage-based, GPA-out-of-5, or other grading systems will need a calculator built for that specific scale.

Why is my calculated GPA different from my official transcript?

Schools sometimes use slightly different scales - for example, treating A+ as 4.3 instead of capping it at 4.0, weighting honors or AP courses differently, or excluding certain course types like pass/fail from GPA calculations. Check your school's official grading policy if your number does not match exactly.

How is cumulative GPA different from semester GPA?

Semester GPA reflects only the courses entered for the current term. Cumulative GPA combines all credit hours and quality points earned across every term to date. Use the "prior GPA" option to calculate your updated cumulative GPA after adding a new semester.

Does this calculator handle weighted GPA for honors or AP classes?

No, this calculator uses the standard unweighted 4.0 scale. Weighted GPA systems, which award extra points for honors, AP, or IB courses, vary by school district and are not included here.

What happens if I leave the course name blank?

Nothing - the course name field is optional and only there to help you keep track of which row is which. It does not affect the GPA calculation.

Can I use this to see what grade I need in a remaining course?

Not directly, but you can estimate it by entering your known courses plus a placeholder row with your remaining course's credit hours, then trying different grades in that row to see which one reaches your target GPA.

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Free GPA Calculator | 4.0 Scale College & High School GPA Tool