How to use the GPA Calculator
The GPA calculator works out your grade point average from letter grades and credit hours.
What you need to enter
- One course per line: grade credits
The formula
GPA = Σ (grade points × credits) ÷ Σ credits, using A = 4.0, B = 3.0, C = 2.0, D = 1.0 and F = 0 with plus and minus steps.
Worked example
Using the default values in the calculator:
- One course per line: grade credits: A 3; B+ 4; A- 3; C 2
| GPA | 3.358 |
| Total credits | 12 |
| Quality points | 40.3 |
Tips for better results
- Enter one course per line, like "A- 3".
- Check your school's scale.
Common mistakes to avoid
- Leaving out credits.
- Using a different scale from your school.
Please note: Results are estimates for general use. For safety-critical work such as electrical or building projects, check with a qualified professional and local codes. See our Disclaimer.