GPA Calculator

What Is a GPA Calculator?

A GPA calculator determines your grade point average by weighting each course's letter grade by its credit hours. Unlike a simple average of your grades, it accounts for the fact that a 4-credit course has more impact on your overall GPA than a 1-credit elective.

Most American colleges use the 4.0 scale, where an A equals 4.0 points and an F equals 0.0. The plus/minus system adds granularity — an A- is 3.7, a B+ is 3.3, and so on. This calculator supports all standard letter grades so you get an accurate result.

Whether you're checking your semester GPA, planning which grades you need to reach a target, or preparing a graduate school application, this tool gives you an instant answer. Just enter your courses, select the grades, and specify the credit hours for each.

Frequently Asked Questions

How is GPA calculated?

GPA is calculated by multiplying each course's grade points by its credit hours, summing those products, then dividing by total credit hours. For example, an A (4.0) in a 3-credit course and a B (3.0) in a 4-credit course gives (4.0 × 3 + 3.0 × 4) / 7 = 3.43 GPA.

What is a good GPA?

A GPA of 3.0 or above (B average) is generally considered good. A 3.5 or higher is considered excellent and competitive for graduate school admissions. Many universities place students on the Dean's List at 3.5 or 3.7 and above.

What is the difference between weighted and unweighted GPA?

An unweighted GPA treats all courses equally on a 4.0 scale. A weighted GPA gives extra points for honors, AP, or IB courses, often using a 5.0 scale. This calculator uses the standard credit-hour-weighted method on a 4.0 scale, which is the system used by most colleges.

Do plus and minus grades affect GPA?

Yes, at most colleges. An A- is worth 3.7 instead of 4.0, while a B+ is 3.3 instead of 3.0. Over a full course load, these differences compound and can shift your GPA by several tenths of a point.

Can I raise my GPA significantly in one semester?

It depends on how many credits you've already completed. Early in college, one strong semester can move your GPA substantially. By senior year, the cumulative average is anchored by many credit hours, so it takes consistent effort over multiple semesters to see meaningful improvement.

Example Calculation

A student takes five courses this semester. Here's their breakdown:

• English 101: A (4.0) × 3 credits = 12.0 quality points
• Calculus I: B+ (3.3) × 4 credits = 13.2 quality points
• Biology: A- (3.7) × 4 credits = 14.8 quality points
• History: B (3.0) × 3 credits = 9.0 quality points
• Art Elective: A (4.0) × 2 credits = 8.0 quality points

Total quality points: 57.0. Total credits: 16. GPA: 57.0 / 16 = 3.56.

This student earns a 3.56 GPA for the semester, which falls in the A- range and would likely qualify for the Dean's List at most universities.