Sinan's athletic identity and basketball talent is a family heritage for him, as he has achieved significant success in both the club teams and the Turkish national team. Because he is a member of the Güler Family, whose roots are rooted in basketball. His father is national basketball player Necati Güler, one of the first stars of ITU, his mother is former basketball player Fatma Nilgün, and his older brother is Muratcan Güler, who has a strong club and national team career.
Sinan accomplished many achievements in his 21 years of active career in basketball, becoming one of the 12 Giant Men, captaining the team in the national team and ending his basketball career in 2023.
After his farewell to the courts, he continues to serve basketball as the founder of Güler Legacy and as a Founding Member of BİDEV.
Sinan is not only a basketball player, but also a social entrepreneur who inspires young people and an investor in sports technology. For this reason, one of his biggest goals is to have a positive impact on the lives of young athletes not only on the court but also off the court.
In 2017, Sinan Güler tied the knot with Ekin Tagal, and with the birth of his daughter Yasemin Güler in 2019, he is now a full-time "father".