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High School GPA Calculator

This tool helps college admission counselors and high school students to calculate wighted and unweighted cumulative GPA in one go. High school seniors, if your school uses percent based grading system, please refer to the conversion table below to convert your grades into letter grades.

Semester GPA
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Weighted Semester GPA
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Class names (optional) Grade Credits Weight (optional)
Add Class
Add Semester

Grade Conversion Chart

We use the following conversion chart when calculating unweighted/weighted GPAs. The chart is one of the most commonly used among high schools. But as you may probably know the weight given to honor classes, AP, BI, College credit courses vary from state to state and from one school to another. So please keep in mined that our calculator may not show you your actual GPA if the weighting scale used by your high school is different than ours. For instance, if you are from South Carolina, this is the conversion scale used by all high schools in the state.

Weighting Scales
Letter Grade Percent Grade 4.0 Scale Honors AP/IB/College Credit
A+ 97-100 4.0 4.5 5.0
A 93-96 4.0 4.5 5.0
A- 90-92 3.7 4.2 4.7
B+ 87-89 3.3 3.8 4.3
B 83-86 3.0 3.5 4.0
B- 80-82 2.7 3.2 3.7
C+ 77-79 2.3 2.8 3.3
C 73-76 2.0 2.5 3.0
C- 70-72 1.7 2.2 2.7
D+ 67-69 1.3 1.8 2.3
D 65-66 1.0 1.5 2.0
F Below 65 0.0 0.0 0.0

Resources

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Cumulative GPA
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Cumulative GPA
Wighted
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Total Credit Hours

How to Use the Calculator

The GPA calculator allows you to calculate your cumulative GPA (both weighted and unweighted) for your entier high school years.

  1. To get started, enter semester name in the input field that says "Semester 1". This is optional.
  2. Enter the class you took in the "class name" input field.
  3. Select your grade and the class's credit hour. As soon as you entered these two info, your semester GPA and cumulative GAP will be calculated and get displayed.
  4. If the course you took weighs more than the regular classes, indicate the type of class under "weight" column.
  5. Repeat the above three steps for the reminder of the classes/courses you took in the semester.
  6. When you're ready to move on to the next semester, click the blue button that says "add semester". And repeat the above steps.