The Student Room Group
Reply 1
When I worked mine out I used the UMSgrade boundaries they made much more sense:

http://www.aqa.org.uk/news/grade_boundaries.pdf
.
Reply 2
yeah but that doesnt show the raw marks/ to ums
Reply 3
How do you convert to UMS?
Reply 4
Depends how the paper is marked. Paper 1 and 2 is out of 90 and paper 3 is out of 180. 72/90 = A grade. 96/120 = A

(basically 80%)