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 700 ng/dL, SHBG 45 nmol/L, Albumin 4.3 g/dL: Free testosterone 125.9 pg/mL; Free fraction 1.8 %; Bioavailable testosterone 305.6 ng/dL; Free testosterone 436.5 pmol/L.
About the inputs: Total testosterone, SHBG, Albumin