List each course and its letter grade
Assign each grade its standard grade-point value
Add the weighted value for each class level if applicable
Multiply each class’s grade points by its credit hours
Sum all weighted grade points
Sum all credit hours
Divide total weighted grade points by total credit hours
Use your school’s weighted GPA scale if it differs from the standard scale
Include honors, AP, IB, or dual-enrollment weight adjustments only if your school counts them
Round the final result to the required decimal place