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 45 nmol/L, Albumin 4.3 g/dL: Free testosterone 65.6 pg/mL; Free fraction 1.64 %; Bioavailable testosterone 159.4 ng/dL; Free testosterone 227.6 pmol/L.
About the inputs: Total testosterone, SHBG, Albumin