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 400 ng/dL, SHBG 60 nmol/L, Albumin 4.3 g/dL: Free testosterone 53.4 pg/mL; Free fraction 1.34 %; Bioavailable testosterone 129.6 ng/dL; Free testosterone 185.1 pmol/L.
About the inputs: Total testosterone, SHBG, Albumin