My penis is 12 cm long. Is this normal?

The longest penis in China is 1 1 cm, the shortest is 3 cm, and the average erectile dysfunction is 6 cm. The maximum diameter is 4.0 cm, the minimum is 1.5 cm, and the average is 2.5cm；; During erection, the longest penis is 18 cm, the shortest is 8 cm, and the average penis is 12 cm. Your normal. 8cm or more is fine, but it depends on the thickness and hardness.