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 300 ng/dL, SHBG 15 nmol/L, Albumin 4.3 g/dL: Free testosterone 83.5 pg/mL; Free fraction 2.78 %; Bioavailable testosterone 202.8 ng/dL; Free testosterone 289.6 pmol/L.
About the inputs: Total testosterone, SHBG, Albumin