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 700 ng/dL, SHBG 30 nmol/L, Albumin 4.3 g/dL: Free testosterone 160.8 pg/mL; Free fraction 2.3 %; Bioavailable testosterone 390.3 ng/dL; Free testosterone 557.4 pmol/L.
About the inputs: Total testosterone, SHBG, Albumin