Homeschool Honor Society:
 
Eta Sigma Alpha : www.Etasigmaalpha.com
 
Science National Honor Society www.sciencehs.org
 
National  Association of High School Scholars: nhss.org
Maudelle.Driskell@nhss.org  Contact Maudelle Driskelle 1-806-346-1800
 
 
GPA Calculator: gpacalculator.com
 97-100   A+    4.0
93-96     A   4.0
90-92     A-  3.7
87-89     B+ 3.3
83-86     B   3.0
80-82     B- 2.7
77-79     C+2.3
73-76     C  2.0
70-72     C-  1.7
67-69     D+  1.3
63-66     D  1.0
60-62     D- 0.7
59 and lower F 0.0
 
 
Online GPA calculators:
Or you can use the online GPA calculator to ensure correct arithmetic.
 
https://gpacalculator.net/high-school-gpa-calculator/
https://www.rapidtables.com/calc/grade/gpa-calculator.html
http://www.back2college.com/gpa.htm