Free Online High School GPA Calculator

Calculate your high school Grade Point Average (GPA) for multiple semesters. Whether you need an unweighted GPA on a 4.0 scale or a weighted GPA for AP, IB, and Honors classes, this free, browser-based tool handles it all. No signup required. If you are already in university, you might prefer our standard GPA calculator.

College GPA Planning Calculator

Determine what average you need to achieve in your remaining high school classes to reach your target college admissions GPA. To track your current assignment scores, use our grade calculator.

How to Use the High School GPA Calculator

Calculating your high school GPA is simple. Follow these steps to get your cumulative GPA. For a deeper dive into the math, read our complete guide on how to calculate your GPA.

• 1
  Choose Grade Format: At the top of the calculator, select your preferred format. Use "Letter" or "Percentage" for standard unweighted classes.
• 2
  Enable Weighting (Optional): If you take AP, IB, or Honors classes, check the "Weighted GPA" box. This will reveal a new "Class Type" dropdown in your course list, allowing you to select AP (+1.0 pts) or Honors (+0.5 pts).
• 3
  Enter Prior GPA (Optional): If you want to calculate your overall cumulative high school GPA, enter your previous GPA and the number of credits you earned prior to this semester.
• 4
  Add Your Courses: For each course, enter the class name (optional), select your grade, and input the credit hours. Typically, a full-year high school class is 1.0 credit, and a half-year class is 0.5 credits.
• 5
  Calculate: Click the "Calculate GPA" button. Your Cumulative GPA and Total Credits will appear in the results box below.

Grade Scale Reference

This calculator uses the standard 4.0 scale for unweighted letter grades. If Weighting is enabled, +1.0 is added for AP/IB classes and +0.5 for Honors classes. For international grading systems, you can use our Australian GPA calculator or UK degree classification calculator.

Frequently Asked Questions (FAQ)

How is my high school GPA calculated?

Your GPA is calculated by multiplying the grade points for each course by the number of credits, adding those numbers together, and then dividing by the total number of credits attempted.

What is the difference between a weighted and unweighted GPA?

An unweighted GPA is based on a standard 4.0 scale and does not account for class difficulty (an A is always 4.0). A weighted GPA gives extra points for harder classes like AP, IB, or Honors, allowing the scale to go up to 5.0 (or sometimes 6.0), rewarding students who take challenging courses. To learn more, read our complete guide on weighted vs. unweighted GPA.

How do I calculate my weighted GPA for AP or Honors classes?

Simply check the "Weighted GPA (AP/Honors)" box in the settings bar. This will reveal a "Class Type" column in your course list. For any advanced class, select "AP/IB" to add +1.0 to the base points, or "Honors" to add +0.5. The calculator does the heavy lifting for you!

How many credits is a high school class worth?

This depends on your school's schedule. Typically, a full-year class (like Algebra or English) is worth 1.0 credits, and a half-year or single-semester class (like Health or Government) is worth 0.5 credits. Check with your guidance counselor if you are unsure.

Can I use this tool to figure out what grades I need for college?

Yes! Use the "College GPA Planning Calculator" section below the main tool. Enter your current GPA, total credits earned, your target college admissions GPA, and the number of credits you have left before graduation. It will calculate the exact average you need to score in your remaining classes. If you need to convert your final score, try our CGPA to percentage tool.

Is my academic data saved or tracked?

No. All calculations happen directly in your web browser. We do not store, transmit, or track the grades or credit hours you enter into this tool.