Patient: I am 30 year old male and had my free testosterone levels measured at 218. What is the range for men my age?
Doctor: For men your age (20-40 year old age group), the normal range for free testosterone is 12-40 pg/mL or 416 – 1386 pmol/L. L. It is also noteworthy that different labs may have slight differences in normal ranges and also, serum free testosterone generally decreases as a man ages. I hope this helps.