Tom's Little sister Carrie is 16
Tom Fletcher is 26 years old (birthdate: July 17, 1985).
According to Wikipedia, she has two sisters:- Shanna born in 1970 (making her 38), Stephanie born in 1973 (making her 35),and Charlotte born 1988(making her 22).
Shanna is 13 years older than Carrie. Stephanie is 9 1/2 years older than Carrie.
Carrie Fletcher