What is GPA?
GPA stands for Grade Point Average, a standardized way of measuring academic achievement on a 4.0 scale. Each letter grade corresponds to a numeric value — A = 4.0, B = 3.0, C = 2.0, D = 1.0, and F = 0.0 — with plus and minus modifiers adding or subtracting 0.3 points. GPA is used by colleges, universities, and employers to evaluate academic performance at a glance.
| Letter Grade | Grade Points | Percentage |
|---|---|---|
| A+ | 4.3 | 97–100% |
| A | 4.0 | 93–96% |
| A− | 3.7 | 90–92% |
| B+ | 3.3 | 87–89% |
| B | 3.0 | 83–86% |
| B− | 2.7 | 80–82% |
| C+ | 2.3 | 77–79% |
| C | 2.0 | 73–76% |
| C− | 1.7 | 70–72% |
| D+ | 1.3 | 67–69% |
| D | 1.0 | 63–66% |
| D− | 0.7 | 60–62% |
| F | 0.0 | 0–59% |
How do you calculate GPA?
To calculate your semester GPA, follow these steps:
- Convert each letter grade to its grade point value (e.g., A- = 3.7, B+ = 3.3)
- Multiply each grade point by the course's credit hours to get quality points
- Add up all quality points
- Divide by total credit hours
The formula is: GPA = Total Quality Points / Total Credit Hours. For example, if you earned an A (4.0) in a 4-credit course and a B+ (3.3) in a 3-credit course: (4.0 × 4 + 3.3 × 3) / (4 + 3) = 25.9 / 7 = 3.7.
What is the difference between semester GPA and cumulative GPA?
Semester GPA reflects your performance in a single academic term. Cumulative GPA combines all semesters into one overall average. To calculate cumulative GPA, use: (Current GPA × Current Credits + Semester GPA × Semester Credits) / Total Credits. For example, if your current GPA is 3.5 with 60 credits and you earn a 3.8 over 15 new credits: (3.5 × 60 + 3.8 × 15) / 75 = (210 + 57) / 75 = 3.56. Our percentage calculator can help you convert between percentage scores and GPA values.
What is a good GPA?
A GPA of 3.0 (B average) is generally considered good. A 3.5 or above is competitive for scholarships and graduate school admissions, while a 3.7+ is considered excellent. Dean's list requirements typically start at 3.5, and most honours programs require at least 3.3. Keep in mind that GPA expectations vary by institution and field — a 3.2 in engineering may carry more weight than a 3.8 in a less rigorous program.
How do credit hours affect GPA?
Credit hours determine how much weight each course carries in your GPA. A 4-credit course impacts your GPA twice as much as a 2-credit course. This is why earning a high grade in a high-credit course significantly boosts your average, while a poor grade in one has a larger negative effect. Understanding this weighting helps you prioritize study time. Use our mean, median, and mode calculator to explore how weighted averages work across different data sets.
What is the difference between weighted and unweighted GPA?
An unweighted GPA uses the standard 4.0 scale for all courses regardless of difficulty. A weighted GPA gives extra points for advanced courses — typically +0.5 for Honors classes and +1.0 for AP or IB courses, allowing GPAs above 4.0. Most colleges recalculate GPAs on their own scale during admissions, but weighted GPA can reflect the rigor of your course load. This calculator uses the standard unweighted 4.0 scale, which is the most widely recognized format.
How can you raise your GPA?
Raising your GPA becomes harder as you accumulate credits because each new grade has less impact on the overall average. If your cumulative GPA is 2.8 with 90 credits, earning a perfect 4.0 over 15 credits would only raise it to about 2.97. Focus on high-credit courses where improvement has the largest effect, and use the cumulative mode of this calculator to model different scenarios. You can also use our Z-score calculator to understand where your GPA falls relative to the class average.