Ronaldo won a host of trophies with Real which included 4 Champions League titles besides two La Liga honors.
He also won 4 FIFA Club World Cups and the same number of UEFA Super Cup trophies.
The player had joined Real from Manchester United in 2009 after in a £80 million deal.
He scored 451 goals and is Real's record goal-scorer.
Club statement on CR7's move
The club's statement read: "For Real Madrid Cristiano Ronaldo will always be one of our great symbols."
It also added that, Real Madrid want to express their gratitude to a player who proved to be the best in the world and who has marked one of the brightest times in the history of our club and world football.
Real will always be Ronaldo's home.
Ronaldo is Juve's record signing
Ronaldo is set to be the record signing for Juventus. Earlier the Old Lady of Turin had paid £75.6 mn for Gonzalo Higuain. Ronaldo has eclipsed that by a mile. He is set to sign a 4-year deal.