Roger Federer has won 17 Grand Slam titles as of 2016. He hasn't won a Grand Slam title since 2012 (Wimbledon)
In 2003 Roger Federer won his first Grand Slam at Wimbledon at the age of 22.
Roger Federer has won 13 single men grand slam titles.
Roger Federer won more than 10 grand slam titles
He has won 15 grand slams in total.
Hi won his first grand slam in the 2003 Wimbledon championships =D.
Roger Federer has 17 career grand slam titles.
He has now won 15 titles, which is a record.
If you speaking in terms of tenis (the Austrilian Open) Roger Federer won in 2010
According to Wikipedia (refer to the links, below), as of May 29, 2009, Rafael Nadal has won six Grand Slam titles, and Roger Federer has won thirteen.