Total Iron Binding Capacity— Normal Range & What Your Result Means

Normal Total Iron Binding Capacity range (TIBC, μg/dL)

  • Adults250–370 μg/dL

Ranges are typical adult values and vary between labs. Use the range on your own report.

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What is Total Iron Binding Capacity (TIBC)?

Total Iron Binding Capacity is measured as part of a iron studies panel. Your iron-binding capacity is normal.

What does a high Total Iron Binding Capacity mean?

Elevated TIBC indicates your blood has extra capacity to bind iron — a classic sign of iron deficiency, as the body tries to absorb more iron.

What does a low Total Iron Binding Capacity mean?

Your TIBC is low, meaning your blood's capacity to transport iron is reduced. This can occur in chronic inflammation or iron overload.

Understand your whole report, not just one number

A single value rarely tells the full story — Total Iron Binding Capacity is best read alongside the rest of your panel. Paste your values or upload your report and get a plain-English explanation of every marker, with the important results flagged.

Total Iron Binding Capacity: frequently asked questions

What is a normal Total Iron Binding Capacity level?

A normal Total Iron Binding Capacity (TIBC) level is 250–370 μg/dL for adults. Reference ranges vary slightly between laboratories, so always compare against the range printed on your own report.

What does a high Total Iron Binding Capacity mean?

Elevated TIBC indicates your blood has extra capacity to bind iron — a classic sign of iron deficiency, as the body tries to absorb more iron.

What does a low Total Iron Binding Capacity mean?

Your TIBC is low, meaning your blood's capacity to transport iron is reduced. This can occur in chronic inflammation or iron overload.

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