The cervix is approximately 3 to 4 cm (about 1.2 to 1.6 inches) deep in length, but this can vary between women. It is the lower part of the uterus that extends into the vaginal cavity. The vaginal portion of the cervix hangs into the vaginal canal and the cervix itself serves as a passageway between the vagina and uterus. The cervix length is generally around 2 to 3 cm, while the entire cervix length is about 4 cm, with a diameter of around 3 cm. In practical terms related to vaginal depth, the cervix is typically found 3 to 4 inches inside the vagina, but this position can vary depending on factors such as arousal and individual anatomy. The vagina itself can lengthen and the cervix can move higher during arousal. So overall, the cervix length (depth from the uterine side to the vaginal opening) is around 3 to 4 cm, but can be positioned 3 to 4 inches deep inside the vaginal canal depending on individual differences.
