What is a normal TIBC level?
The short answer
A typical US lab prints a normal TIBC range of 250–450 µg/dL. That range exists to catch disease, not to describe your best.
Nobody we follow has said what your TIBC should be. It comes up on the shows, but never with a number.
What TIBC measures
How much iron your blood could carry with every transport site full.
It rises when stores run low — your body builds more transport protein to scavenge iron.
Checked against NCBI Bookshelf (StatPearls) — Iron-Binding Capacity.
Common questions
What is a normal TIBC level?
Most US labs print 250–450 µg/dL. Your report grades you against that range. It exists to catch disease, not to describe your best.
What does your TIBC number mean?
On a typical lab range, under 250 µg/dL is low, 250 to 450 is normal and over 450 is high. Your own report prints its range next to your number, and that is the one your lab uses. Nobody we follow has drawn a line inside that range.
What does the TIBC test measure?
How much iron your blood could carry with every transport site full. It rises when stores run low — your body builds more transport protein to scavenge iron.
Why is there no target here?
Because nobody we follow has named a number for TIBC. If that changes, it will be here.