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 600 ng/dL, SHBG 15 nmol/L, Albumin 4.3 g/dL: Free testosterone 178.9 pg/mL; Free fraction 2.98 %; Bioavailable testosterone 434.4 ng/dL; Free testosterone 620.3 pmol/L.
About the inputs: Total testosterone, SHBG, Albumin