The average length of Chinese men’s genitals in the non-erectile state is about 6-8cm, and the average diameter is about 1-2cm; the average length in the erectile state is about 11-13cm, and the average diameter is about 2.5-4cm; however, the size of men’s genitals is related to their age, region, height, weight, and ethnicity to a certain extent. Therefore, there is no standardization of the size of the genitals, but according to some published magazines, in general, the average length of the penis in the non-erectile state of adult males in China is about 6 to 8cm, the average diameter of about 1 to 2cm; the average length of the penis in the erectile state is about 11 to 13cm, the average diameter of about 2.5 to 4cm. For more information about male reproductive organs, please consult a specialist in detail.