Interpret Your Hematocrit Results
Enter your HCT value below and get an instant, free AI interpretation — a plain-English explanation checked against WHO/IFCC reference ranges.
Medical Disclaimer
This AI-generated interpretation is for educational purposes only and does not constitute medical advice, diagnosis, or treatment. Results may vary based on individual health factors not captured here.
Always consult a qualified healthcare professional before making any health decisions. Read full disclaimer →
Hematocrit Normal Ranges
Hematocrit (HCT) measures the percentage of blood volume made up of red blood cells.
| Age Group | Sex | Reference Range | Unit | Notes |
|---|---|---|---|---|
| Adults (18–64) | Male | 41 – 53 | % | — |
| Adults (18–64) | Female | 36 – 46 | % | — |
| All ages | Female | 33 – 42 | % | Pregnancy |
Also reported in: L/L.
Critical (Panic) Values
Critical Low: < 21 %. Critical High: > 60 %. Values outside these limits require immediate clinical attention.
Common Causes of High HCT
Common Causes of Low HCT
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