The result is hemoglobin minus 12 g/dL, the WHO female cut-off. Men are usually compared with 13; sex is not a field. When the field is empty, there is no main result. In the first example the result is +1.2 g/dL.
The calculator does not diagnose anemia and is not a ferritin result. The result is hemoglobin minus 12 g/dL, the WHO female cut-off. Men are usually compared with 13; sex is not a field. When the field is empty, there is no main result.
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The calculator uses the numbers you enter. The result is hemoglobin minus 12 g/dL, the WHO female cut-off. Men are usually compared with 13; sex is not a field. When the field is empty, there is no main result. In the first example the result is +1.2 g/dL.
The five form fields are Hemoglobin if known, Heavy menstrual bleeding, Low iron intake pattern, Dyspnea or orthostasis symptoms, and GI bleed risk / NSAIDs. Hb gap means: This is the main result on this page. In the first example it is +1.2 g/dL. Hemoglobin if known means: The first form field. It enters the formula or sits beside the result. The result is hemoglobin minus 12 g/dL, the WHO female cut-off. Men are usually compared with 13; sex is not a field. When the field is empty, there is no main result. Heavy menstrual bleeding means: The second form field. The calculator does not diagnose anemia and is not a ferritin result.
The second example gives -0.6 g/dL. The third example gives +2.8 g/dL. The result is hemoglobin minus 12 g/dL, the WHO female cut-off. Men are usually compared with 13; sex is not a field. When the field is empty, there is no main result. In the first example the result is +1.2 g/dL.
The calculator does not diagnose anemia and is not a ferritin result.
Enter 13.2, 2, 0, 1, 1, then click Calculate. A comma in 12.5 is read the same way as a period. Fields on a 0-10 scale are notes and are not the primary result unless this page formula says so.
The result is hemoglobin minus 12 g/dL, the WHO female cut-off. Men are usually compared with 13; sex is not a field. When the field is empty, there is no main result.
In the first example the result is +1.2 g/dL. The result is hemoglobin minus 12 g/dL, the WHO female cut-off. Men are usually compared with 13; sex is not a field. When the field is empty, there is no main result.
+1.2 g/dL
The result is hemoglobin minus 12 g/dL, the WHO female cut-off. Men are usually compared with 13; sex is not a field. When the field is empty, there is no main result. In the first example the result is +1.2 g/dL.
-0.6 g/dL
The result is hemoglobin minus 12 g/dL, the WHO female cut-off. Men are usually compared with 13; sex is not a field. When the field is empty, there is no main result. In the second example the result is -0.6 g/dL.
+2.8 g/dL
The result is hemoglobin minus 12 g/dL, the WHO female cut-off. Men are usually compared with 13; sex is not a field. When the field is empty, there is no main result. In the third example the result is +2.8 g/dL.
In the first example the result is +1.2 g/dL. The result is hemoglobin minus 12 g/dL, the WHO female cut-off. Men are usually compared with 13; sex is not a field. When the field is empty, there is no main result.
With the second set of fields the result is -0.6 g/dL.
With the third set of fields the result is +2.8 g/dL.
The result is hemoglobin minus 12 g/dL, the WHO female cut-off. Men are usually compared with 13; sex is not a field. When the field is empty, there is no main result.
The calculator does not diagnose anemia and is not a ferritin result.
This is the main result on this page. In the first example it is +1.2 g/dL. The first form field. It enters the formula or sits beside the result. The result is hemoglobin minus 12 g/dL, the WHO female cut-off. Men are usually compared with 13; sex is not a field. When the field is empty, there is no main result. The second form field. The calculator does not diagnose anemia and is not a ferritin result.
Yes. 12.5 and 12,5 are read the same way.
No. Fields on a 0-10 scale are notes, unless this page formula counts marked items from them. The primary result comes from this page formula.
12 g/dL, the WHO female cut-off. Men are usually compared with 13; sex is not a field. The result is Hb minus 12.
There is no main result. The calculator does not insert 0 or 12 for you.
No. Other fields, if present, sit beside the gap versus 12 g/dL.
13.2 minus 12 is +1.2 g/dL. That is the gap versus the female cut-off, not the male norm.
Hemoglobin in g/dL, as on the blood count.
The result is hemoglobin minus 12 g/dL, the WHO female cut-off. Men are usually compared with 13; sex is not a field. When the field is empty, there is no main result. The calculator does not diagnose anemia and is not a ferritin result.
Page updated in 2026.
