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GPA Calculator

A free GPA calculator that computes your semester GPA from a list of courses, grades, and credit hours. Switch on Cumulative GPA mode to combine this semester with your prior cumulative GPA and total credit hours completed, for an updated overall college GPA.

How GPA is actually calculated

GPA is a weighted average, not a simple average of grades. Each grade converts to grade points on a 4.0 scale (A = 4.0, B = 3.0, and so on), is multiplied by that course's credit hours to get "quality points," and GPA is the total quality points divided by total credit hours — so a 4-credit A counts twice as much toward your GPA as a 2-credit A.

Why cumulative GPA needs your prior record

A new semester's GPA on its own doesn't tell you your overall GPA — it has to be blended with everything completed before it, weighted by credit hours. The calculator reconstructs your total prior quality points from your current cumulative GPA × prior credit hours, adds this semester's quality points, and divides by your new total credit hours.

Why one bad semester matters less as you go

Because cumulative GPA is weighted by total credits, the same rough semester pulls a freshman's GPA down much further than a graduating senior's — a struggling 15-credit term against 15 prior credits is half your total weight, but against 105 prior credits it's only about 12%. This is also why raising a low cumulative GPA gets harder to do quickly the more credits you've already completed.

Common Mistakes to Avoid

Averaging grade points instead of weighting by credit hours

Solution:

A 1-credit A and a 4-credit A should not count equally. Always multiply each grade point by its course's credit hours before averaging (this calculator does it automatically).

Forgetting to switch on Cumulative mode

Solution:

Without it, the calculator only shows this semester's GPA in isolation — turn on Cumulative GPA mode and enter your prior GPA and credits to see your real overall GPA.

Entering prior GPA without prior credit hours (or vice versa)

Solution:

Cumulative GPA can't be reconstructed from GPA alone — both your prior GPA and the total credit hours it was earned over are required to weight it correctly against this semester.

Including a repeated or withdrawn course incorrectly

Solution:

Many schools replace or exclude a repeated course's original grade — check your school's specific repeat policy, since this calculator counts every row you enter at face value.

Assuming a plus/minus grade always changes the grade point value

Solution:

Grading scales vary slightly by school — this calculator uses the common A/A-/B+ scale (4.0/3.7/3.3...), but some schools round differently, so check your school's official scale for anything borderline.

Frequently Asked Questions

Multiply each course's grade point (on a 4.0 scale) by its credit hours to get quality points, add up all the quality points, then divide by the total credit hours.
Turn on Cumulative GPA mode and enter your current cumulative GPA and total credit hours completed so far, along with this semester's courses — the calculator combines both to compute your new overall GPA.
GPA is weighted by credit hours, not a simple average — a 4-credit course affects your GPA more than a 1-credit course, even with the same letter grade.
The standard 4.0 scale: 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, D- = 0.7, F = 0.0.
Yes — use "Add course" for as many rows as you need, and the trash icon next to any course to remove it.
No — it calculates GPA from exactly the courses and grades you enter. Check your school's specific repeat/replacement policy if a retaken course should be excluded or replaced.
No — every calculation runs locally in your browser. Nothing you enter is uploaded, logged, or stored on any server.

Free Online GPA Calculator

Add your courses with each grade and credit hours to instantly calculate your GPA for the term. Turn on Cumulative GPA mode to also enter your prior GPA and total credits completed, and see your new overall cumulative GPA after this semester.

What You Get

  • Add or remove as many courses as you need, with a standard 4.0 grade scale
  • Instant semester GPA, plus total quality points and credit hours
  • A Cumulative GPA mode that combines your prior record with this semester's courses
  • Works for any number of courses or credit-hour weightings

Who Uses This Calculator

College and university students checking their semester GPA, students tracking their cumulative GPA toward graduation requirements or scholarship thresholds, and anyone planning which grades they need to reach a target GPA.