some may say as 200 as normal level for men. some says that 1200 nanograms deciliters
[ng/dl]normal for men. usally the testosterone level will be higher because it helps in deepening the male voice.
Typical testosterone level in adult males ranges between 250 ng/dl and 850 ng/dl. Testosterone level decreases with age: an average 18 years old can be expected to have approximately 750 ng/dl, while an average 38 years old - 650 ng/dl.
The normal testosterone levels can be determined by looking at one's energy level. In metric terms, it varies significantly based on gender. A male in his twenties can have up to twenty times of that of a woman's. For this reason, it is most important to look at the gender then apply the usual metric term.