The average adult uterus is about 7 to 8 centimeters long, 4 to 5 centimeters wide, and approximately 2.5 to 3 centimeters thick. Its size can vary depending on factors such as age, hormonal changes, pregnancy history, and individual differences. Typically, it weighs around 60 grams. The uterus is a pear-shaped, muscular organ located in the pelvic region, with a broad upper part called the fundus and a lower neck region called the cervix.