GPA Calculator
Turn course grades and credit hours into a precise grade point average.
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All 93 toolsWhat is the GPA Calculator?
A GPA calculator turns your individual course grades and their credit hours into a single grade point average — the number most colleges, scholarship boards, and graduate programs use to size up your academic record at a glance. Instead of guessing where you stand, you enter each class, choose its letter grade, set its credit weight, and get an exact GPA on the standard 4.0 scale in real time.
This GPA calculator is built for the way grades actually work: harder, higher-credit courses move your average more than light electives, because the result is credit-weighted, not a simple mean. That distinction matters. A 3-credit A and a 1-credit C do not cancel out — the A carries three times the weight. Getting that math right by hand is tedious and easy to fumble, which is exactly why a calculator is worth keeping open during registration and finals season.
Everything runs in your browser. Your grades are never uploaded, saved to a server, or shared, so you can model a sensitive transcript or a worst-case scenario privately and close the tab without leaving a trace.
How to calculate your GPA
- 1
Add a row for each course you are taking this term. Give it a name if you want — it is optional and just helps you keep track.
- 2
Select the letter grade you earned (or expect to earn) for each course from the dropdown. The tool maps it to grade points on the 4.0 scale: A = 4.0, B+ = 3.3, B = 3.0, and so on.
- 3
Enter the credit hours for each course — usually 1 to 4. This is the weight that determines how much each grade affects your overall GPA.
- 4
Read your GPA at the bottom. It updates instantly as you change grades or credits, so you can test “what if I pull this B up to an A?” before the result is final.
Why students rely on a GPA calculator
Credit-weighted accuracy
It weights every grade by its credit hours, so a heavy major course counts more than a one-credit lab — exactly how your school computes it.
Plan toward a target
Model different grade scenarios before finals to see precisely what you need in each class to hit the GPA you are aiming for.
No transcript uploads
Your grades stay on your device. Nothing is sent anywhere, so even a private or hypothetical transcript is safe to enter.
Works for any term
Use it for a single semester, then move to the CGPA calculator to roll several semesters into a cumulative average.
Understanding GPA and the 4.0 scale
GPA stands for grade point average. Each letter grade is assigned a numeric value — most commonly A = 4.0, A- = 3.7, B+ = 3.3, B = 3.0, B- = 2.7, and downward to F = 0.0. Your GPA is the sum of (grade points × credits) for every course, divided by your total credits. Because of that division, GPA always lands between 0.0 and 4.0 (or higher on weighted high-school scales that reward AP and honors classes).
The single most common mistake students make is averaging the letter grades directly and ignoring credit hours. That overstates the influence of small courses and understates your toughest classes. This calculator removes the error by doing the weighting for you, which is why the number it shows will match what your registrar eventually posts.
Keep in mind that some institutions use a plus/minus system while others round to whole letters, and a few cap GPA differently. If your school treats an A and A+ identically, simply choose A. For an unweighted result that matches a standard transcript, leave honors and AP bonuses out — those belong on weighted high-school scales, not the college 4.0 system.