Total Iron-Binding Capacity (TIBC)
TIBC measures the total capacity of circulating transferrin to carry iron, reflecting bodily demand for iron.
Test your personal value
Enter the number from your lab report to instantly see how it compares to reference ranges.
Physiological Reference Ranges
The ranges below represent standard adult physiological values. Your laboratory's printed reference range always takes precedence.
45 – 75 µmol/L
45 – 75 µmol/L
45 – 75 µmol/L
What does a low result mean?
A slightly lower binding capacity can occur with lighter nutrition or during mild, transient inflammation.
What does a high result mean?
An elevated TIBC is the classic healthy response: the body creates more binding capacity when iron stores are modest.
Questions ready for your doctor
Bring these questions to your next consultation to discuss with your healthcare practitioner:
- Does this binding capacity point toward replenishing dietary iron?
- Does this correlate consistently with my ferritin and serum iron?
- What is my accompanying transferrin saturation index?
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Important information — Medical notice
ScanMyLab is for informational purposes only. It does not provide a diagnosis and never replaces the advice of your doctor or laboratory.