He graduated with a Bachelor's degree in Economics at the University of Nevada, Las Vegas.

He has returned to the Stockholm School of Economics to finish his master's degree.

At the University of Nevada, Las Vegas, he competed with the UNLV Rebels.

Both years he was a part of the 4x50 y medley relay gold winning team.

Andersson competed for Sweden at the 2008 Olympics, where he narrowly missed his personal best while placing third in his heat with a time of 1:01.77 on 100 m breaststroke and maintained his top 50 in the world status.