Free testosterone, calculated
Enter total testosterone, SHBG and albumin from your lab report. The Vermeulen equation, with the paper it comes from and the constants it uses shown.
With Total testosterone 300 ng/dL, SHBG 30 nmol/L, Albumin 4.3 g/dL: Free testosterone 61.2 pg/mL; Free fraction 2.04 %; Bioavailable testosterone 148.6 ng/dL; Free testosterone 212.1 pmol/L.
About the inputs: Total testosterone, SHBG, Albumin