What Are the Normal Dimensions of the Uterus?

The normal uterine length is 7–8 cm, width 4–5 cm, and thickness 2–3 cm. However, these are only average values; individual variations in height, weight, and body habitus mean there is no universally defined “normal” uterine size.

The uterus is the most vital organ of the female reproductive system. It resides in the lower central portion of the pelvic cavity and has a triangular, inverted shape composed primarily of muscular tissue. The uterus connects to the fallopian tubes superiorly and to the vagina inferiorly, serving essential functions in embryo implantation and gestation as well as menstrual cycle regulation.The normal uterine cavity volume is approximately 5 mL; however, during late pregnancy, this capacity increases nearly 1,000-fold—reaching about 5,000 mL—and gradually returns to baseline after delivery.