Normal Range of Free Testosterone in Men

Patient

Q: I am 30 year old male and had my free testosterone levels measured at 218. What is the range for men my age?

Doctor

A:   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. 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.

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