Obtain copies of all of your undergraduate transcripts and review your coursework. Be sure to collect all transcripts; LSAC requires copies of transcripts from anywhere you took undergraduate credits, and checking yourself will save you from any nasty surprises when you apply to law school.
Examine the grading school for each school. LSAC uses a 4.0 scale to report LSDAS GPA: an A+ equals 4.33, an A is 4.0, an A- is 3.67, B+ is 3.33, and so forth. If your undergraduate institution also uses this scale, you don't have to convert grades for completed coursework (although you may have to make other adjustments). However, if, for example, your school only gave 4.0 for an A+ or a 3.7 for an A-, recalculate your GPA by multiplying the LSAC grading scale for each course by the number of credit hours.
Factor in incomplete, withdrawn or repeated courses. Even if your school doesn't include these in your GPA, the LSAC will; incomplete/withdrawn courses will register as 0 towards your LSAC GPA. Even if you failed a course and retook it with a passing grade, the failed course will count towards your LSAC GPA.
Omit the grades for any courses completed after you received your first undergraduate degree, if applicable.
Include grades for any community college or other transfer credits , even if, for example, you were a senior in high school when you took them.
Work out your LSDAS GPA by hand or using a GPA calculator such as the one at lawpad.com (www.lawpad.com/gpa_calculator/) to find your LSDAS GPA.