A male hormone levels chart is available on Healthline's website. It shows standard testosterone levels by age, beginning with infancy, for men and women. For example, a male baby's testosterone level should be between 75 and 400 nanograms per deciliter. By age 16, the level is between 100 and 1,200.
Testosterone levels are obtained through blood, saliva or brain hormone tests, according to Healthline. Standard adult male testosterone levels range from 270 to 1,070 nanograms per deciliter. After a man reaches 30 years old, it is typical for his testosterone level to drop 1 percent each year. However, diseases sometimes reduce hormone production as well.