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 900 ng/dL, SHBG 15 nmol/L, Albumin 4.3 g/dL: Free testosterone 282.5 pg/mL; Free fraction 3.14 %; Bioavailable testosterone 685.9 ng/dL; Free testosterone 979.5 pmol/L.
About the inputs: Total testosterone, SHBG, Albumin