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 45 nmol/L, Albumin 4.3 g/dL: Free testosterone 84.6 pg/mL; Free fraction 1.69 %; Bioavailable testosterone 205.5 ng/dL; Free testosterone 293.5 pmol/L.
About the inputs: Total testosterone, SHBG, Albumin