GPA Calculator

Calculate your grade point average on the 4.0 scale

Your GPA

3.64

4.0 scale · Total credits: 9

Course

Grade

Credits

Course 1

Course 2

Course 3

How GPA is calculated

GPA = Σ(grade × credits) / Σ(credits)

Each course's grade point is multiplied by its credit hours, summed, and divided by total credits — a credit-weighted average on the 4.0 scale.

What is a GPA calculator?

A GPA calculator turns your letter grades and credit hours into a single grade point average on the standard 4.0 scale. Because courses carry different credit weights, a simple average of letter grades would be misleading — a high grade in a 4-credit course should count more than the same grade in a 1-credit course. This tool does that weighting for you: enter each class, pick its grade, set its credits, and the running GPA updates instantly so you can see exactly how each course pulls your average up or down.

How to use it

1. For each course, choose the letter grade you earned (A, B+, C, etc.). 2. Enter the number of credit hours for that course. 3. Use 'Add course' to include every class for the term. The GPA and total credits update as you type. Remove a row with the X button to model dropping a class or to plan a target GPA.

Formula and definition

GPA is a credit-weighted average: GPA = Σ(grade point × credits) ÷ Σ(credits) Each letter maps to a grade point — A = 4.0, B = 3.0, C = 2.0, and so on. Multiply each course's grade point by its credits, add those products, and divide by the total credits. For example, A (4.0) in a 3-credit class and B (3.0) in a 2-credit class gives (12 + 6) ÷ 5 = 3.6.

Reading your results

On the 4.0 scale, roughly 3.5+ is often considered strong, 3.0 solid, and below 2.0 may risk academic probation at many schools. But context matters: course difficulty, your program, and how your institution weights honors or AP classes all affect what a 'good' GPA means. Use the calculator to see how a single grade changes your average, or to figure out what grades you need next term to reach a target.

Frequently asked questions

Which grade scale does this use? ▾

The standard US 4.0 scale, where A = 4.0, A- = 3.7, B+ = 3.3, down to F = 0.0. Check your school's official scale if it differs.

How are credit hours weighted? ▾

Each course's grade point is multiplied by its credits, so higher-credit courses influence your GPA more. The total is divided by the sum of all credits.

Can I calculate a target GPA? ▾

Yes. Add hypothetical future courses with the grades you expect, and the running average shows whether you'll reach your goal.

Does my country use a different system? ▾

Grading systems vary widely — some use percentages, 10-point scales, or class ranks. This tool uses the 4.0 scale common to US institutions; convert your grades first if needed.

This calculator uses the standard US 4.0 scale and is for general guidance only. Your institution's official grading policy is authoritative — always confirm GPA calculations with your school's registrar.