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 30 nmol/L, Albumin 4.3 g/dL: Free testosterone 84.2 pg/mL; Free fraction 2.11 %; Bioavailable testosterone 204.5 ng/dL; Free testosterone 292 pmol/L.
About the inputs: Total testosterone, SHBG, Albumin