Ranking of SNSD on smallest to highest member

1. Sunny 155cm
2. Taeyeon/Hyoyeon 160cm
4. Tiffany 162cm
5. Jessica 163cm
6. Yoona 166cm
7. Yuri 167cm
8. Seohyun 168cm
9. Sooyoung 170 (i call her Tally)

1.Sunny (smallest)
2.Taeyeon
3.Hyoyeon
4.Tiffany
5.Jessica
6.Yoona
7.Yuri
8.Seohyun
9.Sooyoung (highest)

1. Sunny - 155cm
2. Taeyeon/Hyoyeon - 160cm
3. Jessica - 163cm
4. Tiffany - 164cm
5. Yoona - 167cm
6. Yuri - 168cm
7. Seohyun - 169cm
8. Sooyoung - 171cm

But Seohyun and Sooyoung could of grown XD

1-Sooyoung (tallest. and she's actually 1.73, Fany revealed this last year, on a radio show)
2-Seohyun
3-Yoona
4-Yuri
5-Tiffany
6-Jessica
7-Hyoyeon
8-Taeyeon
9-Sunny