Free & Bioavailable Testosterone Calculator.
- These calculated results more accurately reflect bioactive testosterone levels as compared to total testosterone measurements.
- Testosterone circulates in plasma mostly bound to SHBG and albumin, with only 2-3% free. Testosterone is strongly bound to sex hormone-binding globulin (SHBG) and weakly bound to albumin.
- Free testosterone is a measurment of the unbound portion, while bioavailable testosterone includes free plus albumin-bound testosterone.
Disclaimer: This calculator is for informational purposes only and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.