Hemoglobin Level
Hemoglobin is the protein in red blood cells that carries oxygen. The cut-off differs by sex, so the same number can land in different bands.
Your numbers
Result
1
Hemoglobin (g/dL)
14g/dL
What it means
Within the normal range.
Formula
Result = band(Hemoglobin (g/dL), sex)
A single reading does not reveal the cause of anemia. A low result usually leads to further tests for iron, B12 or folate.
What to enter
| Input | Default | Accepted range |
|---|---|---|
| Hemoglobin (g/dL) (g/dL)The oxygen-carrying protein in red blood cells; a low reading means anemia. | 14 | 3 ~ 25 |
| Sex (M1 / F0)Where the formula splits by sex — enter 1 for male, 0 for female. | 1 | 0 ~ 1 |
Step by step
Quick reference table
Results when only Hemoglobin (g/dL) (g/dL) changes and everything else stays put.
| Hemoglobin (g/dL) (g/dL) | Result | Hemoglobin (g/dL) (g/dL) |
|---|---|---|
| 7 | 0 | 7 |
| 10.5 | 0 | 10.5 |
| 14 | 1 | 14 |
| 21 | 2 | 21 |
| 25 | 2 | 25 |
What each result means
| Result | At default values |
|---|---|
| ResultWhat the formula gives back — the answer this page is for. | 1 |
| Hemoglobin (g/dL) (g/dL)The oxygen-carrying protein in red blood cells; a low reading means anemia. | 14 |
Common mistakes
A single reading does not reveal the cause of anemia. A low result usually leads to further tests for iron, B12 or folate.
Glossary
- Hemoglobin (g/dL)
- The oxygen-carrying protein in red blood cells; a low reading means anemia.
- Sex (M1 / F0)
- Where the formula splits by sex — enter 1 for male, 0 for female.
- Result
- What the formula gives back — the answer this page is for.
Frequently asked questions
QHow is Hemoglobin Level calculated?
Result = band(Hemoglobin (g/dL), sex) — Hemoglobin is the protein in red blood cells that carries oxygen. The cut-off differs by sex, so the same number can land in different bands.
QCan you walk through an example?
With Hemoglobin (g/dL) 14g/dL, Sex (M1 / F0) 1, the answer is Result 1.
QWhat do I need to enter?
Enter Hemoglobin (g/dL), Sex (M1 / F0). The result recalculates as you type, and an empty box counts as zero.
QHow much does the answer move if I change a number?
Changing only Hemoglobin (g/dL) (g/dL) moves the answer to Hemoglobin (g/dL) (g/dL) 7 → Result 0 and Hemoglobin (g/dL) (g/dL) 25 → Result 2. The table below lays out five steps.
QHow are the numbers rounded?
Money is shown to the nearest whole unit, percentages to one decimal place and everything else to two. What you see is rounded; the calculation itself carries the unrounded value forward.
QAnything to watch out for?
A single reading does not reveal the cause of anemia. A low result usually leads to further tests for iron, B12 or folate.
Related calculators
These calculators help you understand health figures; they do not replace diagnosis or prescription. See a clinician if you have symptoms.