Asked if he wanted to outdo Ferenc Puskas who played until he was 39 he said: "Forty-one," and when asked about what he had left to give he added: "I think I have got 10 years left."
Ronaldo was shown a film of some of his best goals for the club. There was also footage of his 2009 presentation at the Bernabeu in front of 80,000 expectant supporters.
None of them will have been disappointed by subsequent successes and Ronaldo admitted he had achieved more than even he could have dreamed.
He said: "I did not expect these figures in such a short time. But it comes from a lot of work from me and from the team. I want to keep making history. Five years is a long time but I want to go on learning and winning."
He was asked if he tired of the criticism that comes when he does not score - criticism that he heard again at the weekend after failing to find the net in Real Madrid's 3-0 win over Leganes.
He said: "To score or not score is not so important. When a player who is used to scoring doesn't then he is a bit down but it's not anxiety as some people call it. This is a very happy day for me. I won the European Cup and then the European Championship and now I have renewed for five years so it's a great moment. It's been a great year."
As well as the promise of 10 more years of football he did not rule out breaking the 500 goals barrier before he hangs up his scoring boots. He is currently on 371 with the club.
"I never thought I would break Raul's record,' he said. 'Five hundred goals is a possibility but I am not going to obsess over it. The most important thing is to keep improving and that the team wins. The best is yet to come."
