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 15 nmol/L, Albumin 4.3 g/dL: Free testosterone 54.2 pg/mL; Free fraction 2.71 %; Bioavailable testosterone 131.6 ng/dL; Free testosterone 187.9 pmol/L.
About the inputs: Total testosterone, SHBG, Albumin