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 15 nmol/L, Albumin 4.3 g/dL: Free testosterone 114.2 pg/mL; Free fraction 2.86 %; Bioavailable testosterone 277.3 ng/dL; Free testosterone 396 pmol/L.
About the inputs: Total testosterone, SHBG, Albumin