Background and Aim: The human brain undergoes many gross and histopathological changes with regression of the brain tissue leading to the enlargement of the ventricles as age advances. Knowledge of morphometry and size of normal ventricular system of the brain is of utmost importance to understand these changes. Methods: The present study was carried on 200 patients [100 males and 100 females] in the age group of 10-80 years. GE OPTIMA CT 660 was used for obtaining the scans and these were statistically analyzed. Results: With respect to side and gender, the length of frontal horn of left side was 31.1 mm, 29.9 mm in males and females respectively