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 500 ng/dL, SHBG 60 nmol/L, Albumin 4.3 g/dL: Free testosterone 68.7 pg/mL; Free fraction 1.37 %; Bioavailable testosterone 166.9 ng/dL; Free testosterone 238.4 pmol/L.
About the inputs: Total testosterone, SHBG, Albumin