GPA Calculator for College & High School

Use this free GPA calculator to check where your grades stand right now. Whether you need a college GPA calculator by semester or a weighted GPA calculator for high school courses, this tool gives you immediate, exact numbers.

How to Calculate GPA on a 4.0 Scale

A Grade Point Average (GPA) is the standard raw average of your course grades converted into numerical values, typically on a 4.0 scale. It summarizes your overall academic record across a single term or your entire degree.

To convert raw marks, use a standard letter grade to grade point conversion chart where an A earns 4.0 quality points, a B earns 3.0, a C earns 2.0, a D earns 1.0, and an F earns 0.0. Multiplying these points by each course's credit hours gives you total grade points.

Semester GPA vs. Cumulative GPA

A semester GPA reflects your academic standing for just one specific term. In contrast, a cumulative GPA aggregates all completed terms to show your running score across your entire academic program.

Select Your Mode: Choose between college semester calculations (using credit hours) and high school levels.
Enter Course Data: Match each letter grade to its corresponding credit hours or class level (Regular, Honors, or AP/IB).
Add Previous Credits: Combine your current term results with past credit hours and quality points to compute an accurate cumulative total.

Weighted vs. Unweighted GPA Formulas

Unweighted scales treat every course identically on a 0 to 4.0 point spread. A weighted GPA calculator for high school factors in course difficulty by adding +0.5 points for Honors classes and +1.0 point for AP or IB classes.

Unweighted College GPA Formula

GPA = Total Quality Points / Total Credit Hours Attempted

Weighted High School GPA Formula

Weighted GPA = Sum of (Base Grade Points + Course Weight) / Total Number of Classes

Quality points equal the grade point value multiplied by course credit hours (for example, an A in a 4-credit course yields 16.0 quality points).

How to Calculate Cumulative GPA with Previous Credits

When adding a new semester to an established college transcript, do not simply average the two GPAs together. You must account for the difference in total credit hours between past semesters and your current term:

Find Past Quality Points: Multiply your prior cumulative GPA by your total completed credit hours.
Calculate Current Quality Points: Multiply each new grade point value by the credits for that course and sum them up.
Combine and Divide: Add your past quality points to your new quality points, then divide by the grand total of all credit hours attempted.

Frequently Asked Questions

How do you calculate your GPA?

To calculate your GPA, multiply each course grade point value by its credit hours to find the total quality points. Add all quality points together and divide that number by your total credit hours attempted.

What is a 3.5 GPA equivalent to in percentage?

On a standard 4.0 scale, a 3.5 GPA typically converts to roughly a 90% letter grade average (an A- or high B+), depending on your specific school's grading scale.

How do you convert letter grades to GPA?

Convert letter grades to grade points on a standard 4.0 scale: A = 4.0, A- = 3.7, B+ = 3.3, B = 3.0, B- = 2.7, C+ = 2.3, C = 2.0, C- = 1.7, D+ = 1.3, D = 1.0, and F = 0.0.

What GPA do you need to graduate with honors?

Most colleges set honors thresholds near 3.5 to 3.7 for Cum Laude, 3.75 to 3.89 for Magna Cum Laude, and 3.9 to 4.0 for Summa Cum Laude, though exact cutoff points vary by institution.