About This GPA Calculator
This tool helps students estimate simple GPA, weighted GPA, cumulative GPA, target GPA, and letter-grade point values. It runs entirely in your browser and saves recent calculations locally on your device.
How to Calculate GPA
For a credit-weighted GPA, multiply each course grade point by the course credit hours. Add those quality points together, then divide by the total credits attempted.
GPA = total quality points / total credit hours
Common Grade Reference
| Letter | 4.0 scale | Typical meaning |
|---|---|---|
| A / A+ | 4.0 | Excellent |
| A- | 3.7 | Very strong |
| B+ | 3.3 | Strong |
| B | 3.0 | Good |
| C | 2.0 | Satisfactory |
| D | 1.0 | Passing at many schools |
| F | 0.0 | No grade points |
University-Specific Scales
Universities do not all use the same grading policy. Some cap A+ at 4.0, some allow 4.3, some high schools use 5.0 weighted scales for honors or AP courses, and some international systems use 7.0 scales. Always confirm official rules with your school registrar or academic handbook.
Customization
Developers can customize colors in assets/css/styles.css and grading scales in assets/js/app.js. The scale object is intentionally grouped near the top of the JavaScript file.