Iron Saturation Calculator

Calculates transferrin saturation — the percentage of your iron-carrying protein that is loaded with iron. A key marker for both iron deficiency and iron overload.

Formula

Iron Saturation % = (Serum Iron ÷ TIBC) × 100

Serum Iron (µg/dL)

TIBC (µg/dL)

Interpretation

< 16% — Iron deficiency (low saturation)

16–45% — Normal

> 45% — Iron overload risk (hemochromatosis concern)

When is this useful?

Transferrin saturation is part of a standard iron panel. Low values suggest your body doesn't have enough iron, while high values may indicate iron overload conditions like hemochromatosis.

HFE/hemochromatosis screening typically uses transferrin saturation alongside ferritin. A saturation consistently above 45% warrants further evaluation.

For informational purposes only. Not medical advice. Always confirm results with your healthcare provider before making medical decisions.