Calculate your Grade Point Average and percentage equivalent instantly with our free online tool.
| Course Name (Optional) | Grade | Credit Hours | Action |
|---|---|---|---|
This calculator uses the standard 4.0 GPA scale. Here's the grade conversion table:
| Letter Grade | GPA Value | Percentage Range |
|---|---|---|
| A | 4.0 | 90-100% |
| A- | 3.7 | 85-89% |
| B+ | 3.3 | 80-84% |
| B | 3.0 | 75-79% |
| B- | 2.7 | 70-74% |
| C+ | 2.3 | 65-69% |
| C | 2.0 | 60-64% |
| C- | 1.7 | 55-59% |
| D+ | 1.3 | 50-54% |
| D | 1.0 | 45-49% |
| F | 0.0 | Below 45% |
Quickly calculate your Grade Point Average (GPA) and percentage equivalent using this free online GPA calculator. Simply enter your course grades and credit hours to see your weighted GPA instantly. Whether you're in high school, college, or university, this tool supports all major grading systems.
The calculator multiplies each course's grade point by its credit hours, sums the results, and divides by the total number of credit hours to get your GPA. The percentage equivalent is calculated using a standard conversion scale. You can add as many courses as needed and adjust grades or hours at any time.
Explore more free tools: Grade Calculator, Percentage Increase Calculator, Average Calculator.
GPA — grade point average — summarises a whole term’s results in a single number on the 4.0 scale. It is a weighted average, not a simple one: each course contributes grade points multiplied by its credit hours, so a four-credit course moves your GPA more than a two-credit course with the same grade. The calculator adds up every course’s grade points × credit hours, divides by your total credit hours, and updates the result as you type. Alongside the GPA it shows your total credits, the percentage equivalent on a standard conversion scale, and the overall letter grade, so you can read the same result the way your school, a scholarship form or an employer might ask for it.
A student finishes the term with three courses. History: grade A (4.0) at 3 credits gives 12.0 grade points. Chemistry: grade B (3.0) at 4 credits gives 12.0 grade points. Art: grade A (4.0) at 2 credits gives 8.0 grade points. The totals are 32.0 grade points over 9 credits, so the GPA is 32.0 ÷ 9 = 3.56. Notice what the weighting does: the B sits in the heaviest course, which is why three good grades land at 3.56 rather than higher — and why, when you are planning next term, improving a high-credit course lifts your GPA more than improving a light one. Try it above: change the Chemistry grade to an A and the same courses give 36.0 ÷ 9 = 4.0.
Students use it at results time and before results time — entering expected grades shows the GPA you are on course for, which is the number that decides scholarship eligibility, honour rolls and whether a target university’s requirement is within reach. Everything runs in your browser; your grades are never sent or stored. Free, with no sign-up.
Related: track a single subject’s grade instead with the Grade Calculator, convert one score into a percentage with the Percentage Calculator, or average a set of marks the simple way with the Average Calculator.
Each course’s grade point (A = 4.0, B = 3.0, and so on) is multiplied by its credit hours. Add those products together and divide by the total credit hours — that weighted average is your GPA.
The standard 4.0 scale. It also shows a percentage equivalent using a standard conversion scale, and your overall letter grade.
As many as you need. Add a row per course with its grade and credit hours, and edit or remove rows at any time — the GPA updates instantly.
Yes. Enter the grades you expect, or the grades you are aiming for, and the calculator shows the GPA they would produce, so you can see what a target GPA requires before results day.