Not sure Michel. We adopted him from Pet Smart....and he was advertised as a female Maine Coon. Well.....he's not a she. He had spent a year in the SPCA, and Pet Smart was his final chance. They 'guessed' that he was around 6 or 7.....but I'm not sure how accurate that it. We've had him for 7 years. I think he may have been a little older than 6 or 7 when we got him.