GPA Calculator
Grade point average from your courses and their credit weights, on whichever scale you use.
GPA is a weighted average: each course's grade point multiplied by its credit hours, summed, then divided by total credits.
How the gpa calculator works
GPA is a weighted average: each course's grade point multiplied by its credit hours, summed, then divided by total credits. A four-credit course counts twice as much as a two-credit one, which is why an A in a small elective moves the average far less than students expect.
The scale matters. A 4.0 scale is the US norm; Australian universities commonly use 7.0; some schools weight honours and advanced courses to 5.0. Enter grade points on whatever scale your institution uses and the result comes back on the same scale.
Enter grade points and credits as matching lists, in the same order.
Formula: GPA = Σ(grade points × credits) / Σ credits
Worked examples
| Inputs | GPA | Note |
|---|---|---|
| Five courses on a 4.0 scale | 3.52 | GPA 3.5 |
| All equal credits | 2.5 | weighting changes nothing |
| On a 7-point scale | 6.1429 | GPA 6.29 |
FAQFrequently asked questions
How do I calculate GPA?
Multiply each grade point by its credits, add them up, and divide by total credits.
Why is my GPA lower than the average of my grades?
Because credits weight it. A weak grade in a large course counts more than a strong one in a small elective.
What scale should I use?
Whichever your institution uses. 4.0 is the US norm, 7.0 is common in Australia, and UK degrees are classified rather than averaged.
Do failed courses count?
Usually yes, at zero points, and they often still consume credits — which is why a fail is so costly to a GPA.
Does this handle weighted honours courses?
Yes — pick the 5.0 scale and enter the weighted points your school assigns.
Where these figures come from
- Brysbaert (2019), Journal of Memory and Language — How many words do we read per minute? — the 238 wpm silent reading rate, from 190 studies
- Office for Students — the regulator for English higher education
Last checked: September 2026. Reading and writing rates are from published meta-analyses, cited on the page.