Free & Bioavailable Testosterone Calculator

Calculate free and bioavailable testosterone using the Vermeulen formula.

Your stats

Total Testosterone (ng/dL)

SHBG (nmol/L)

Albumin (g/dL)

Default is usually 4.3 g/dL

Enter your values to see the calculation results.

Calculations based on the Vermeulen et al. (1999) formula.