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 200 ng/dL, SHBG 60 nmol/L, Albumin 4.3 g/dL: Free testosterone 25.2 pg/mL; Free fraction 1.26 %; Bioavailable testosterone 61.1 ng/dL; Free testosterone 87.3 pmol/L.
About the inputs: Total testosterone, SHBG, Albumin