Red Blood Cells (Erythrocytes / RBC)

Complete Blood Count (CBC)

A healthy result should fall into the range 4.2 - 6.1 cells/mcL, 4.20 - 6.10 x10^12/L, or 4.20 - 6.10 x10/12/l.

Red blood cells (RBCs) are the most plentiful type of cell in the blood (~40% to 45% of the body's blood supply. They carry oxygen to the tissues and organs. They also bring back carbon dioxide back to the lungs so that it can be removed (exhaled) from the body. Red blood cells get their color from the protein hemoglobin. RBCs are constantly being replenished and they have a lifespan of around 120 days. Red blood cells are also known as erythrocytes, red cells, haematids, and erythroid cells. Red blood cells perform this important role for humans and are the main way that all animals with a backbone (vertebrates) get oxygen delivered to the tissues. A red blood cell count is usually performed during a routine physical and is used to help diagnose polycythemia (high red blood cell count), anemia (low blood cell count), and various other blood disorders. If an abnormality is detected, other values in the complete blood count, or CBC, are examined to identify the cause of the imbalance.

Reference Ranges for Red Blood Cells in x10E6/µL:

Men: 4.7 to 6.1

Women: 4.2 to 5.4

Children up to 18 years of age: 4.0 to 5.5

Infants: 4.8 to 7.1

Red Blood Cells (Erythrocytes / RBC) result calculator

insert the value from you Red Blood Cells (Erythrocytes / RBC) test result.

Is your Red Blood Cells (Erythrocytes / RBC) too high or too low?
Upload your lab report and instantly interpret your result.

DIY Health One

One Lab Report Interpretation

  • One lab report interpretation
  • Use self upload form
  • 800+ biomarkers explained
  • Recommendations
  • Pay per additional interpretations
  • Report uploading support*

15 $

Analyze and Interprete Now

*Additional costs may apply

DIY Health Track

Unlimited Lab Report Interpretations

  • Unlimited lab report interpretations
  • Use self upload form
  • 800+ biomarkers explained
  • Recommendations
  • Online support
  • We do the uploading for you*

59 $/year

Analyze and Interprete Now

*4 report uploads by our team are included per year

Sign Up, Upload Tests, Get Insights and Improve with

Sign up now

Your Privacy And Security

At HealthMatters, we're committed to maintaining the security and confidentiality of your personal information. We've put security measures in place to help protect against the loss, misuse or alteration of information under our control. We use procedural, physical and electronic security methods designed to prevent people who aren't authorized from getting access to this information. Our internal code of conduct adds additional privacy protection. See our Privacy Policy for more information.