GPA stands for grade point average. It’s a single number, typically on a scale from 0 to 4.0, that represents your overall academic performance by converting letter grades into numerical values and averaging them across all your courses. Schools, colleges, and employers use it as a quick snapshot of how well you’ve done in your classes.
How the 4.0 Scale Works
The standard GPA scale assigns a point value to each letter grade:
- A (90–100%) = 4.0
- B (80–89%) = 3.0
- C (70–79%) = 2.0
- D (66–69%) = 1.0
- F (below 65%) = 0.0
Many schools also use plus and minus grades, which add or subtract fractions of a point. An A- is typically worth 3.7, a B+ is 3.3, a B- is 2.7, and so on in 0.3 increments. Some institutions extend the scale slightly above 4.0 by awarding an A+ a value of 4.3, though this varies by school.
How GPA Is Calculated
Your GPA isn’t a simple average of your grade points. It’s weighted by the number of credit hours each course carries, so a four-credit class has more influence on your GPA than a one-credit class. The formula looks like this:
For each course, multiply the grade point value by the number of credits. Add those products together, then divide by the total number of credits.
Here’s a concrete example. Say you take three courses in a semester: a 3-credit course where you earn a B- (2.7), a 4-credit course where you earn an A- (3.7), and a 3-credit course where you earn a B+ (3.3). You’d calculate it as:
(2.7 × 3) + (3.7 × 4) + (3.3 × 3) = 8.1 + 14.8 + 9.9 = 32.8
Then divide by total credits: 32.8 ÷ 10 = 3.28 GPA.
One thing worth knowing: a failing grade still counts in the calculation. If you receive a 0.0 for a course, those credits are included in the denominator, which pulls your overall GPA down.
Cumulative vs. Semester GPA
Your semester GPA (sometimes called a term GPA) covers only the courses you took in a single semester. Your cumulative GPA includes every graded course from the time you started at that school. When someone asks “what’s your GPA?” they almost always mean the cumulative number. Colleges and employers care about the cumulative figure because it reflects your performance over time, not just one good or bad semester.
Weighted vs. Unweighted GPA
In high school, you’ll often see two versions of GPA on your transcript. An unweighted GPA uses the standard 4.0 scale, treating every class the same regardless of difficulty. A weighted GPA gives extra points for harder courses like Advanced Placement (AP), International Baccalaureate (IB), or honors classes. In a weighted system, an A in an AP course might be worth 5.0 instead of the usual 4.0, and an A in an honors course might count as 4.5. This means a weighted GPA can go above 4.0.
The purpose of weighting is to reward students who challenge themselves with tougher coursework. A student with a 3.8 weighted GPA who loaded up on AP classes may have taken on a harder schedule than a student with a 4.0 unweighted GPA in standard courses. College admissions offices are well aware of this distinction and typically know whether a high school reports weighted or unweighted numbers.
Where Your GPA Matters
In high school, your GPA is one of the primary factors in college admissions. Selective schools often look for cumulative GPAs above 3.5 on an unweighted scale, though they also consider the rigor of your course load and your grade trend over time.
In college, GPA requirements show up in several places. Many scholarships require you to maintain a minimum GPA, commonly 3.0 or higher. Graduating with honors typically requires a GPA of at least 3.5, though the exact threshold varies by school. Some competitive graduate programs and employers in fields like finance, consulting, and engineering screen applicants by GPA, often using 3.0 or 3.5 as a cutoff.
After your first few years in the workforce, GPA becomes far less relevant. Most employers stop asking about it once you have meaningful work experience on your resume. But for students and recent graduates, it remains one of the most visible measures of academic achievement.