Two people can hand in the exact same lab slip and walk away with completely different verdicts on their iron stores.
That’s because “normal” ferritin isn’t one fixed number. It shifts with age, sex, and even life stage — a range that works for a 30-year-old man says very little about a newborn, a pregnant woman, or a postmenopausal woman.
Here’s how ferritin reference ranges actually break down, and what to keep in mind when reading your own results.
Normal Ferritin Ranges by Age and Gender
| Group | Typical Ferritin Range |
|---|---|
| Newborns (0–1 month) | 25–200 ng/mL |
| Infants (1–12 months) | 50–200 ng/mL, peaking around 200–600 ng/mL near 1 month before declining |
| Children (6 months–15 years) | 7–140 ng/mL |
| Adult men | 24–336 ng/mL |
| Adult women (premenopausal) | 11–307 ng/mL |
| Pregnant women (by trimester) | 1st: 6–130 · 2nd: 2–230 · 3rd: 0–166 ng/mL |
| Postmenopausal women | Tends to shift toward the higher end of the adult female range |
These are general reference intervals, not diagnostic cutoffs — the number that actually flags a problem is usually much narrower and depends on your lab and clinical context.
Why Ferritin Ranges Are So Wide
Ferritin isn’t like body temperature, where 98.6°F means roughly the same thing for everyone. It reflects stored iron, and how much iron someone stores depends heavily on biology and life stage.
Men typically run higher than women because women lose iron monthly through menstruation. That’s also why premenopausal women have the widest, lowest range of any adult group — and why postmenopausal women often see their ferritin climb once periods stop.
According to Mayo Clinic, the typical range for adults is roughly 24 to 336 ng/mL for men and 11 to 307 ng/mL for women, though ranges can differ slightly between labs and testing methods.
Ferritin in Infants and Children
Newborns are actually born with high ferritin, reflecting iron stores built up during pregnancy. Levels can spike further in the first month of life before dropping steadily through infancy and early childhood.
By the time a child reaches school age, ferritin settles into a much lower, more adult-like pattern. Cleveland Clinic notes that children between 6 months and 15 years typically fall in the range of roughly 12 to 140 ng/mL, though exact cutoffs vary by lab and age bracket within that window.
Pediatric iron deficiency is a distinct clinical picture from adult deficiency, and it’s usually evaluated using age-specific growth and lab standards rather than adult reference ranges.
Ferritin During Pregnancy
Ferritin naturally declines across pregnancy, largely due to increased blood volume and the growing demand for iron to support the fetus and placenta.
This is expected physiology, not automatically a red flag. As Perinatology.com’s reference data shows, ferritin ranges shift lower with each trimester, which is one reason prenatal panels track iron status closely rather than relying on a single snapshot.
Because the drop is expected, providers typically interpret pregnancy ferritin alongside hemoglobin and other markers rather than judging it against non-pregnant reference ranges.
Why “Normal” on Your Lab Report Isn’t Always Optimal
This is the part that trips up a lot of people: a lab can flag your ferritin as “normal” and you can still be functionally iron-depleted.
Reference ranges are built from a broad population, including people who are only barely getting by. A ferritin of 15 ng/mL might sit inside a lab’s normal range, yet plenty of research on iron deficiency without anemia points to symptoms — fatigue, hair shedding, restless legs — showing up well before ferritin drops to the bottom of that range.
This is a big part of why our full comparison of the best iron supplements for low ferritin exists: a “normal” result doesn’t rule out benefiting from closing the gap, especially for people in higher-risk groups like menstruating women, vegetarians, and endurance athletes.
If you’re unsure whether your ferritin and hemoglobin numbers tell the full story, our breakdown of ferritin vs. iron vs. hemoglobin explains how the three markers relate and why they can diverge.
FAQs
What is considered a low ferritin level for women?
Reference ranges place normal adult female ferritin roughly between 11 and 307 ng/mL, but many clinicians consider levels below 30 ng/mL suggestive of depleted iron stores, even within that broader “normal” window.
Is ferritin naturally higher in men than women?
Yes. Men generally run higher because they don’t lose iron through menstruation, which is why the typical adult male range extends well above the typical adult female range.
Why is my child’s ferritin range different from mine?
Children’s iron physiology changes rapidly with growth, especially in the first two years of life. Pediatric reference ranges account for these shifts, so a level that would look low in an adult may be normal for a child’s age, and vice versa.
Does ferritin change after menopause?
It often rises. Once menstruation stops, the regular monthly iron loss that kept premenopausal ferritin lower goes away, and levels tend to trend toward the higher end of the adult range.
Is low ferritin during pregnancy always a concern?
Not necessarily. Ferritin normally declines across pregnancy due to increased blood volume and fetal iron demand. Your provider will typically interpret it alongside hemoglobin and other markers rather than in isolation.
Should I compare my ferritin to a general chart or ask my doctor?
General charts are useful for context, but your own baseline, symptoms, and health history matter more than a population-wide range. Always discuss individual results with a healthcare provider.
What symptoms suggest ferritin is too low, even if it’s “in range”?
Persistent fatigue, hair shedding, restless legs, pale skin, and difficulty concentrating are common signs worth raising with a doctor, even if your ferritin technically falls within your lab’s normal range.
Final Thoughts
There’s no single “normal” ferritin number — it depends on who you are and what stage of life you’re in.
A healthy range for a newborn looks nothing like a healthy range for an adult man, and a healthy range for a pregnant woman shifts by trimester.
If your ferritin comes back low, or “normal” but you still have symptoms, our guide to the best iron supplements for low ferritin compares top options by dose, form, and tolerability — and anyone with ongoing symptoms should still loop in a doctor before starting supplementation.