A normal ovary is between 3 to 5 centimeters long, 1.5 to 3 centimeters wide and 0.5 to 1.5 centimeters thick, reports Pathology Associates of Lexington, P.A. The volume of a healthy ovary is usually between 5 to 15 cubic centimeters, and normal weight is between 5 to 8 grams.
Ovarian volume generally decreases as a woman ages, and women under 30 years of age have the highest mean ovarian volume, according to National Institutes of Health. The mean ovarian volume in all premenopausal women is about 4.9 cubic centimeters, while mean ovarian volume in postmenopausal women is about 2.2 cubic centimeters. Weight does not affect ovary size, but taller women tend to have larger ovaries than shorter women.