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 200 ng/dL, SHBG 30 nmol/L, Albumin 4.3 g/dL: Free testosterone 39.5 pg/mL; Free fraction 1.97 %; Bioavailable testosterone 95.8 ng/dL; Free testosterone 136.9 pmol/L.
About the inputs: Total testosterone, SHBG, Albumin