Your age30
1890
Your total testosterone (optional)
Typical range · Ages 30–39
280–900ng/dL
280900
Enter your total testosterone above to see where it falls for your age.
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Get My Estimated T-Score →These are general reference ranges for education only and vary by laboratory and individual. Ranges are adapted from published population studies, including the harmonized reference range for men 19–39 (Travison et al., 2017)¹ and observed age-related decline in longitudinal cohorts²³ — full references below. This tool is not a medical device, diagnosis, or treatment recommendation. Only a licensed healthcare provider can interpret your results.
References
1. Travison TG, et al. Harmonized Reference Ranges for Circulating Testosterone Levels in Men of Four Cohort Studies in the United States and Europe. J Clin Endocrinol Metab. 2017;102(4):1161–1173.
2. Bhasin S, et al. Testosterone Therapy in Men With Hypogonadism: An Endocrine Society Clinical Practice Guideline. J Clin Endocrinol Metab. 2018;103(5):1715–1744.
3. Feldman HA, et al. Age Trends in the Level of Serum Testosterone and Other Hormones in Middle-Aged Men: Longitudinal Results From the Massachusetts Male Aging Study. J Clin Endocrinol Metab. 2002;87(2):589–598.