High School GPA Calculator

Below is a calculator that may be used to convert a GPA to a 4-point scale.


  1. Enter your current cumulative GPA and your school's grading scale in the boxes below.
  2. If using percentage grading scale, you must provide what percent is the lowest "A".


  1. To convert a 3.75 on a 5.0 grading scale, enter 3.75 in the GPA field and 5.0 in the Scale field.
  2. To convert a 87% cumulative GPA on a 100% grading scale, determine the lowest percent for an "A" (including "A-") and enter that number in the lowest "A" field. Then enter 87 in the GPA field and 100 in the grading scale field.

Invalid input. Review instructions and examples above.