Hematology

Red Blood Cell Count

Normal Range
Male: 4.5 - 5.9; Female: 4.1 - 5.1 x10^6/µL
Sample Type
Standard
Fasting
No
Unit
x10^6/µL

The RBC count measures the actual number of red blood cells in a volume of blood. Within a Complete Blood Count (CBC), it is used to assess the body's ability to transport oxygen. It helps differentiate between types of anemia and erythrocytosis when combined with Hemoglobin and Hematocrit.

Check Your Result

Check Your Result

Interactive
x10^6/µL

Enter your lab result to see where you stand compared to the standard reference range.

Why Context Matters

Levels can be artificially elevated by severe dehydration (hemoconcentration) or living at high altitudes. Conversely, fluid overload can dilute the RBC count.

Lab ranges are statistical averages, not biological laws. "Normal" for a 20-year-old male isn't normal for a 60-year-old female.

Clinical References

Source-of-truth databases and clinical guidelines for Red Blood Cell Count:

Research & Guidelines

Related Indicators

Activated Partial Thromboplastin Time (APTT)

View Range

Blood Cell Morphology

View Range

AML Comboquest 9

View Range
DR

Medically Reviewed by Dr. Binoy Babu, MBBS

Board Certified Doctor • 10+ Years Clinical Experience

Dr. Babu is a practicing physician dedicated to empowering patients with clear, actionable medical information. He founded 2opi to bridge the gap between complex lab reports and patient understanding, ensuring everyone has access to a reliable second opinion.

Get Notified When Dr. Babu Is Available