Calculate free testosterone and bioavailable testosterone levels using total testosterone, SHBG, and albumin measurements.
This calculator uses validated mathematical models to determine free testosterone and bioavailable testosterone levels from total testosterone, sex hormone-binding globulin (SHBG), and albumin measurements. Essential for accurate hormone assessment and clinical decision-making.
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Healthy adult male with normal testosterone levels.
Total Testosterone: 650 ng/dL
SHBG: 35 nmol/L
Albumin: 4.2 g/dL
Age: 35 years
Free Testosterone: 15.2 pg/mL
Bioavailable Testosterone: 180.5 ng/dL
Adult male with low testosterone levels.
Total Testosterone: 280 ng/dL
SHBG: 45 nmol/L
Albumin: 3.8 g/dL
Age: 45 years
Free Testosterone: 4.8 pg/mL
Bioavailable Testosterone: 65.2 ng/dL
Case with elevated SHBG levels affecting bioavailability.
Total Testosterone: 500 ng/dL
SHBG: 80 nmol/L
Albumin: 4.0 g/dL
Age: 40 years
Free Testosterone: 6.2 pg/mL
Bioavailable Testosterone: 85.1 ng/dL
Older male with age-related testosterone decline.
Total Testosterone: 350 ng/dL
SHBG: 60 nmol/L
Albumin: 3.5 g/dL
Age: 70 years
Free Testosterone: 5.8 pg/mL
Bioavailable Testosterone: 78.3 ng/dL