High School GPA Calculator

What's my overall GPA?

Enter your grades below

High School students, use this calculator to determine the outcome of this semester's grades on your overall average. To calculate your cumulative average, enter in your current GPA and number of classes from previous semesters; then this semester's grades and credits. If you are taking AP, honors, IB or college prep classes, select the corresponding class type to calculate your weighted GPA. This calculator uses the standard US scale where a regular class A is worth 4.0 points. An AP/Honors/IB A is worth 4.5 and a College Prep A is worth 5.0 grade points. This calculator will calculate both your semester's weighted and unweighted GPA.

Prior Semesters' Grades (optional)

If you want to calculate your cumulative GPA, enter the total GPA you've earned in prior semesters and the total classes you've already taken. You can leave this empty and skip below if you're only interested in the current semester's GPA.

This Semester's Grades

Enter the letter grade you earned in each class this semester.

How to use the GPA Calculator

  1. Locate your prior cumulative GPA and enter it in the 'Prior Cumulative GPA' input. This can be found on your last recent report card prior to this semester and represents your GPA to this point. If you don't have a prior GPA, you can skip ahead to step 3.
  2. From your most recent report card, determine how many classes you have already completed before this semester and enter it in 'Number of Prior Completed'. This value is very important for determining your overall GPA. The more classes you've already taken, the harder it will be to move your GPA up or down this semester.
  3. Select your letter grade for each course this semester ranging from an A to an F
  4. By default, classes will be weighted as regular credit classes. If are taking an AP, Honors, IB or College Prep course, select the corresponding class type. This will increase the point value of the grade you earned by +0.5 for AP/Honors and +1.0 for college credit classes.
  5. Click the "Calculate your GPA" button to see your cumulative and semester GPA

How your GPA is calculated (Unweighted GPA)

This calculator uses the standard (4.0) four point U.S. high school GPA scale outlined in the tables below in order to convert your letter grades to numerical points. AP, honors and IB classes are awarded an additional half point (+0.5) for each class and college prep classes are awarded an additional full point (+1.0). Your semester's GPA is calculated as the sum of all the points earned, divided by the number of classes taken. This calculation method should be accurate for most U.S. high schools, though some use different methods. You may optionally calculate your cumulative GPA through this semester by entering it in the prior semester input boxes. The cumulative calculation will only be accurate if you also enter the total number of classes taken in prior semesters. Look on your prior report card for these values.

Standard Letter Grade to GPA Conversion

High School Grade Point Scale for Letter Grades
Letter Grade Point Value
A4.0
A-3.7
B+3.3
B3.0
B-2.7
C+2.3
C2.0
C-1.7
D+1.3
D1.0
D-0.7
F0.0

Honors/AP/IB Class Letter Grade to GPA Conversion (Weighted GPA)

AP & Honors High School Grade Point Scale for Letter Grades
Letter Grade Point Value
A4.5
A-4.2
B+3.8
B3.5
B-3.2
C+2.8
C2.5
C-2.2
D+1.8
D1.5
D-1.2
F0.5

College Prep Class Letter Grade to GPA Conversion (Weighted GPA)

High School Grade Point Scale for College Prep Class Letter Grades
Letter Grade Point Value
A5.0
A-4.7
B+4.3
B4.0
B-3.7
C+3.3
C3.0
C-2.7
D+2.3
D2.0
D-1.7
F1.0