How your GPA is built
Your GPA is your total quality points divided by your total credit hours. Each course earns quality points equal to its grade value on the 4.0 scale times its credits, so an A in a 4-credit course is 4.0 times 4, or 16 quality points.
Add the quality points across every course, divide by the total credits, and the result is your GPA. A term of an A in a 4-credit course, a B+ in 3 credits, an A- in 3 credits, and a B in 4 credits comes to 49.0 quality points over 14 credits, a 3.50 GPA. The credit weighting is the whole point: a strong grade in a 4-credit course moves the average far more than the same grade in a 1-credit elective, because it carries four times the quality points.
The 4.0 scale, and the A+ disagreement
On the standard US 4.0 scale, an A is 4.0, an A- is 3.7, a B+ is 3.3, and so on down to an F at 0.0. The one genuinely contested value is the A+.
Some schools cap the scale at 4.0, so an A+ and an A are both worth 4.0. Others award 4.3 for an A+, which lets a transcript full of top marks climb above a straight-A 4.0. The disagreement is real enough that the same report card yields two different GPAs depending on whose rule you apply, and most calculators quietly pick one. This tool caps an A+ at 4.0 by default, matching the more common US practice, and gives you a switch to score it as 4.3 when your registrar does.
| Letter | Grade points |
|---|---|
| A+ | 4.0 (or 4.3) |
| A | 4.0 |
| A- | 3.7 |
| B+ | 3.3 |
| B | 3.0 |
| B- | 2.7 |
| C+ | 2.3 |
| C | 2.0 |
| C- | 1.7 |
| D | 1.0 |
| F | 0.0 |
Semester GPA versus cumulative GPA
A semester GPA covers one term of courses. A cumulative GPA blends every term you have finished, and it is the figure schools rely on for academic standing, honors eligibility, and graduation. To get it, add your prior GPA and the number of credits behind it, and the tool folds this term into that running total by combining the quality points on both sides.
The blend is credit-weighted, so a light term shifts a large cumulative GPA only a little. A student with a 3.0 across 30 prior credits who then earns this 3.50 term of 14 credits lands at 139 quality points over 44 credits, a 3.16 cumulative. The more credits already behind you, the harder the whole average is to move, which is why a strong early record is worth so much.
Weighted high school GPA is a different scale
A weighted GPA, common in US high schools, adds points for harder courses, often 0.5 for honors and 1.0 for AP or IB, so an A in an AP class can score a 5.0. That is a separate scale from the unweighted college 4.0 method this tool uses, which treats every course the same regardless of difficulty. If your school weights honors and AP courses, the figure this tool shows is the unweighted version, useful for comparison though it is not what your high school transcript will print.
What this leaves out
This computes the 4.0-scale GPA from the grades and credits you enter. It does not know your school's exact letter cutoffs, whether a repeated course replaces or averages with the original, or how pass or fail and withdrawn courses are treated, all of which vary by institution and can shift the official number. Use it to plan and to check your own math, then confirm the policies that apply to your transcript with your registrar.
Because the average is credit-weighted, the single most effective move on a GPA is a high grade in a high-credit course, which is where the quality points pile up fastest.
Frequently asked questions
How is GPA calculated? GPA is your total quality points divided by your total credit hours. Each course earns quality points equal to its grade value on the 4.0 scale times its credits, so an A (4.0) in a 4-credit course is 16 quality points. Add the quality points across all courses, divide by the total credits, and the result is your GPA. A heavier course pulls the average more, which is why credits matter.
Is an A+ worth 4.0 or 4.3? It depends on the school, and that disagreement is real. Many institutions cap the scale at 4.0, so an A+ and an A are both 4.0. Others award 4.3 for an A+, which lets a GPA rise above a straight-A 4.0. This tool caps A+ at 4.0 by default, matching most US schools, and offers a switch to score it as 4.3 so you can match your own registrar.
What is the difference between semester and cumulative GPA? Semester GPA covers one term of courses. Cumulative GPA blends every term you have completed, and it is the number schools use for academic standing, honors, and graduation. To get it, enter your prior GPA and the credits it was earned over, and the tool folds this term into that running total by combining the quality points on both sides.
What is a weighted GPA? A weighted GPA, common in US high schools, adds points for harder courses, often 0.5 for honors and 1.0 for AP or IB, so an A in an AP class can score 5.0 rather than 4.0. That is a different scale from the college 4.0 method here, which treats every course the same regardless of difficulty. If your school weights honors and AP courses, this tool gives the unweighted 4.0 figure.
How do I raise my GPA? Because GPA is credit-weighted, the fastest lever is a strong grade in a high-credit course, since it carries more quality points. New credits also dilute an existing average, so a heavy term of high grades moves a cumulative GPA more than a light one. The cumulative view in this tool lets you test a target: enter your prior GPA and credits, then try grades for this term and watch the running number move.