Health

Transferrin Saturation Calculator

TSAT from serum iron and TIBC.

Serum Iron (µg/dL)

TIBC (µg/dL)

TSAT

TSAT = (Serum Iron / TIBC) × 100. Normal 20–45%. < 20%: iron deficiency. > 45%: iron overload (screen for hereditary hemochromatosis). In CKD, target TSAT 20–30% for ESA therapy. TSAT is more specific than ferritin for functional iron deficiency.