How to Convert Percent to Grade Point Average

Written by michael keenan
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Some high schools use percentages, or a 100-point scale, to quantify the academic performance of students rather than a traditional 4.0 scale for GPA, or grade point average. However, many college and scholarship applications will ask for a GPA rather than a grade percentage. To convert your percentages to a GPA, you need to know your average percentage and the conversion table used to convert your percentage into a GPA.

Skill level:
Moderately Easy

Things you need

  • Conversion table

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  1. 1

    Add all of your class averages together. For example, if you took five classes and your grades were a 98, 94, 87, 82 and 89, you would get a total of 450.

  2. 2

    Divide the total from step 1 by the number of classes you took. For example, if your total was 450 from five classes, you would have an average of 90 per cent.

  3. 3

    Determine the scale being used to convert your percentage to a GPA. A common system converts an average from 94 to 100 as a 4.0, 90 to 93 as a 3.7, 87 to 89 as a 3.3, 83 to 86 as a 3.0 and so on. However, different schools may use different scales so you should contact the school.

  4. 4

    Convert your average from step 2 to a GPA using the scale from step 3. For example, an average of 90 per cent would convert to a 3.7 GPA.

Tips and warnings

  • Some schools may use a formula to convert the percentage to a GPA rather than a table. For example, some may divide your average percentage by 100 and multiply by four. In this case, an average of 90 per cent would be equivalent to a 3.6 GPA. Be sure to contact the organisation you are reporting your GPA to determine which method to use.

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