TIBC (Total Iron Binding Capacity)
TIBC reflects the total amount of iron that transferrin in blood can bind and serves as an indirect measure of transferrin concentration. It rises in iron deficiency as the body produces more transferrin in an effort to capture available iron, and falls in chronic disease, malnutrition, and iron overload. Used together with serum iron to calculate transferrin saturation.
Optimal range: who says what
No institution or named practitioner we track states an optimal target for TIBC (Total Iron Binding Capacity). How we verify ranges.
- General guidance, no named sourceWithin referenceInterpret with ferritin and transferrin saturation rather than alone
- Lab reference interval250-450 μg/dLWhat a lab report flags against. A lab interval is not an optimal target.
15 of 21 itemized panels
Vitamins & Nutrients
Why TIBC (Total Iron Binding Capacity) matters
Reflects transferrin levels. Elevated in iron deficiency as body tries to capture more iron. Low in chronic disease. Used to calculate transferrin saturation.
Which Providers Test TIBC (Total Iron Binding Capacity)?
Cheapest: Empirical Health at $190/year. Most comprehensive: Function Health, 160+ biomarkers for $365/year.
15 panels that include it, cheapest first
| Provider | Annual Cost | Total Biomarkers | $/Biomarker |
|---|---|---|---|
| $190 | 100+ | $1.90 | |
| $297 | 100+ | $2.97 | |
 Superpower | $349 | 100+ | $3.49 |
| $349 | 75+ | $4.65 | |
 WHOOP Advanced Labs | $349 | 65 | $5.37 |
 Function Health | $365 | 160+ | $2.28 |
| $365 | 100+ | $3.65 | |
| $375 | 108 | $3.47 | |
| $495 | 80+ | $6.19 | |
| $499 | 100+ | $4.99 | |
| $700 | 138 | $5.07 | |
| $829 | 54 | $15.35 | |
| $895 | 100+ | $8.95 | |
| $1188 | 70+ | $16.97 | |
| $1950 | 130+ | $15.00 |
$/Biomarker is annual cost divided by the panel's advertised biomarker count, not the price of this one test. We track 23 blood test providers (32 plans); 21 of those plans are itemized marker by marker. Compare all of them.
6 itemized panels do not include TIBC (Total Iron Binding Capacity)
Labcorp OnDemand · Life Extension Elite · Everlywell · Marek Health Base · Oura Health Panels · SiPhox Health
11 providers not itemized in our matrix
We have not itemized these marker by marker (some sell tests one at a time), so this page cannot say whether they offer TIBC (Total Iron Binding Capacity). Check with them directly.
Life Extension Standard · Quest Health · Ultrahuman Blood Vision · Lifeforce · Hundred Health · Personalabs · Walk-In Lab · HealthLabs · WHOOP Specialized Panels · Marek Health Essential · Vitality Blueprint Upload
Experts discussing TIBC (Total Iron Binding Capacity)
Podcast episodes where clinicians and researchers cover this marker in depth. Curated by hand; an episode is listed only when the marker is a substantial topic, not a passing mention.
Frequently Asked Questions
What is the optimal range for TIBC (Total Iron Binding Capacity)?
No institution or named practitioner we track states an optimal target for TIBC (Total Iron Binding Capacity). General guidance without a named source: Within reference (Interpret with ferritin and transferrin saturation rather than alone). Lab reference interval: 250-450 μg/dL. That is what a lab report flags against, not an optimal target.
Which blood test providers include TIBC (Total Iron Binding Capacity)?
15 of the 21 blood testing panels we itemize marker by marker include TIBC (Total Iron Binding Capacity) in their panels. This biomarker is widely available across major providers.
Related: YouBoost rates lifestyle and supplement interventions by evidence.
Medical Disclaimer
This information is for educational purposes only and is not medical advice. Always consult with a qualified healthcare provider about your specific health needs.
Last reviewed Aug 26, 2026 · First published Sep 30, 2025