Check what hemoglobin level is considered anemia in women, men and pregnancy, and where your Hb result sits. This anemia risk calculator is informational only, never a substitute for a doctor’s diagnosis.
Find “hemoglobin” or “Hb” on your blood-test report. Use your own lab’s reference range where given — it’s the most accurate for you.
Thresholds follow common WHO reference values for adults; children and other groups differ, and labs vary. Being below a threshold suggests it’s worth a conversation with your doctor — it isn’t a diagnosis.
What Hemoglobin Level Is Considered Anemia in Women?
A common reference threshold for non-pregnant adult women is below 12.0 g/dL, which is 120 g/L. For adult men it is below 13.0 g/dL, and during pregnancy below 11.0 g/dL. A result under the line is worth discussing with a doctor; it does not confirm anemia.
| Group | Threshold (g/dL) | Same threshold (g/L) |
|---|---|---|
| Adult man | 13.0 | 130 |
| Adult woman (not pregnant) | 12.0 | 120 |
| Pregnant | 11.0 | 110 |
How the Comparison Works
The tool compares your hemoglobin (Hb) result with the reference threshold for your group. It is a risk-awareness tool, not a diagnosis.
Formula: If your unit is g/L, it’s first converted with Hb (g/dL) = Hb (g/L) ÷ 10. Then: Result = “Below threshold” if Hb (g/dL) < Threshold(group), otherwise “At or above threshold”. Thresholds are: adult man = 13.0 g/dL, adult woman (not pregnant) = 12.0 g/dL, pregnant = 11.0 g/dL.
- Pick the group: pregnant.
- Enter the Hb result from your report: 105.
- Choose g/L, so the tool converts 105 ÷ 10 = 10.5 g/dL.
- Compare with the 11.0 g/dL threshold: 10.5 is below it, so the result reads Below threshold.
- Group: adult man, adult woman (not pregnant), or pregnant; sets which threshold your result is compared against.
- Hemoglobin (Hb) result: the numeric value from your blood test that gets compared to the threshold.
- Units: g/dL or g/L toggle; g/L values are converted to g/dL (÷10) before comparison.
Example Scenarios
| Group | Hb Entered | Unit | Threshold (g/dL) | Result |
|---|---|---|---|---|
| Adult man | 12.5 | g/dL | 13.0 | Below threshold |
| Adult woman | 12.5 | g/dL | 12.0 | At or above threshold |
| Pregnant | 105 | g/L | 11.0 | Below threshold (10.5 g/dL) |
| Adult man | 140 | g/L | 13.0 | At or above threshold (14.0 g/dL) |
| Adult woman | 11.5 | g/dL | 12.0 | Below threshold |
| Pregnant | 11.0 | g/dL | 11.0 | At or above threshold |
Is 12 Hemoglobin Low for a Male? Reading Your Result
Against the common 13.0 g/dL threshold for adult men, yes, 12.0 falls below it. Is 11.5 hemoglobin low? Below the line for men and non-pregnant women, but not in pregnancy. Before entering anything, check the units: converting hemoglobin g/L to g/dL means dividing by 10, so 120 g/L is 12 g/dL, and mixing them up gives a meaningless result.
- People living at high altitude and people who smoke tend to run higher hemoglobin, while pregnancy lowers it.
- The tool only says where the number falls, not why. Iron deficiency, low vitamin B12 or folate, chronic disease and inherited conditions can all cause anemia, and each is treated differently.
That is why a low reading should lead to a conversation with your doctor, who may order ferritin, a full blood count or other tests. Avoid starting iron tablets on your own because of this result, since iron is not the right fix for every type.
See a doctor promptly if a low result comes with breathlessness, chest pain, fainting or black stools. The anemia article on Wikipedia outlines the main causes worth discussing alongside your reading.
Common questions about hemoglobin and anemia
What hemoglobin level is considered anemia in women?
A common reference threshold for non-pregnant adult women is below 12.0 g/dL (120 g/L). It is a general reference point, not a diagnosis; your lab’s own range and your doctor’s interpretation matter more.What hemoglobin level is considered anemia in pregnancy?
The common reference threshold in pregnancy is below 11.0 g/dL. It is set lower because blood volume expands during pregnancy, which naturally dilutes hemoglobin even when iron stores are adequate.Is 12 hemoglobin low for a male?
12.0 g/dL is below the common 13.0 g/dL reference threshold for adult men, so this tool would show it as below threshold. That is a reason to discuss the result with a doctor, not a diagnosis on its own.Is 11.5 hemoglobin low?
It depends on the group. 11.5 g/dL is below the threshold for adult men (13.0) and non-pregnant women (12.0), but at or above the 11.0 g/dL threshold used in pregnancy. Ask your doctor what it means for you.How do I convert hemoglobin from g/L to g/dL?
Divide the g/L value by 10. A lab result of 120 g/L equals 12.0 g/dL, and the calculator does this conversion automatically when you select g/L.Can this calculator diagnose anemia?
No. It only compares a single hemoglobin number to a general threshold. Anemia has many possible causes and is properly diagnosed through a full blood count (CBC) and clinical evaluation by a doctor.Related Calculators
Blood test results are often reviewed alongside other health metrics: try the iron intake calculator since low iron is a common cause of anemia, the blood type compatibility calculator if you’re exploring other blood-related questions, or the thyroid function checker since fatigue can stem from several overlapping causes.