GPA calculator

What is the GPA Calculator?

GPA (Grade Point Average) is a single number that summarizes your academic performance across multiple courses, weighted by how many credit hours each course was worth. This calculator adds up your courses and works out the overall average automatically, using the standard 4.0 scale — no manual weighting math required.

Everything runs instantly in your browser as you add courses, with no sign-up and no data stored anywhere.

How to use it

1. For each course, select the letter grade you received.
2. Enter how many credit hours the course was worth.
3. Click "Add course" for each additional class.
4. Your GPA updates automatically as you fill in the rows, along with your total credit hours.

How GPA is calculated

Each letter grade converts to a point value (A = 4.0, A- = 3.7, B+ = 3.3, B = 3.0, and so on down to F = 0.0). Your GPA is the sum of (grade points × credit hours) for every course, divided by your total credit hours — so a 4-credit A counts more toward your average than a 1-credit A.

Formula: GPA = Σ(grade points × credit hours) ÷ Σ(credit hours)

Worked example

Suppose you took three courses: an A (4.0) worth 3 credits, a B+ (3.3) worth 4 credits, and a C (2.0) worth 3 credits.

• Grade points: (4.0×3) + (3.3×4) + (2.0×3) = 12 + 13.2 + 6 = 31.2
• Total credits: 3 + 4 + 3 = 10
• GPA: 31.2 ÷ 10 = 3.12

Why credit hours matter

GPA is a weighted average, not a simple average of your letter grades. A course worth more credit hours has a bigger impact on your overall GPA than a course worth fewer credits, because it represents a larger share of your total academic workload. This is why two students with the same letter grades can end up with different GPAs if their credit hour distributions differ.

A note on grading scales

This calculator uses the most common U.S. 4.0 scale with +/- grades. Some schools use a slightly different scale — for example, without +/- distinctions, or a 5.0 scale that gives extra weight to honors and AP courses. If your institution grades differently, use this as a close estimate rather than your official transcript GPA, and check with your registrar for institution-specific rules.

Common uses

• Tracking your GPA across a semester as grades come in
• Estimating what grade you'd need in a remaining course to hit a target GPA
• Comparing your GPA before and after retaking a course
• Preparing for scholarship, honor roll, or graduate school applications that require a minimum GPA

Frequently asked questions

Does this include pass/fail or non-credit courses?

No — this calculator is built for standard letter-graded courses. Pass/fail courses are typically excluded from GPA calculations entirely, so you should leave them out of the tool as well.

Can I remove a course I added by mistake?

Simply set that row's credit hours to 0, and it will no longer affect your calculated GPA.