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 1000 ng/dL, SHBG 60 nmol/L, Albumin 4.3 g/dL: Free testosterone 158.8 pg/mL; Free fraction 1.59 %; Bioavailable testosterone 385.5 ng/dL; Free testosterone 550.5 pmol/L.
About the inputs: Total testosterone, SHBG, Albumin