Understanding your results
See published ranges by age and estimate your free testosterone.
What’s typical at your age?
Labs differ, so use the range on your own report. A lower number at an older age isn’t automatically healthy. Source: Travison et al., 2017
Read and calculate
- Free testosterone levelsPublished free testosterone ranges in men, by age band and by lab method, with the units and caveats you need before comparing your own result.
- Testosterone levels by ageTotal testosterone ranges for men by age band, copied from one peer-reviewed study, with how to read them and why your lab's range may differ.
- Free testosterone calculatorEstimate free testosterone from your total testosterone and SHBG results.