Atar Calculator Online
The online Atar calculator is developed from Albert Einstein's UAI calculator which has permanently moved to atarcalculator.com.au
The calculator determines the top 10 units including 2 units of English which is compulsory. The HSC marks are scaled, added together and converted to an ATAR rank based upon statistics from the 2009 HSC exams.
There is also an Excel version of the Atar calculator which can be downloaded from this site to use off line.