Blood count

Red blood cells unit converter

Red blood cell count

Also known as: RBC, Red cell count, RCC, Erythrocytes, Erythrocyte count, Globules rouges

Converter

Enter a value in any unit and all other units fill in.

10¹²/L /µL

Worked example

4.75 10¹²/L (middle of the reference range) = 4 750 000 /µL

Conversion formulas

/µL	/µL = 10¹²/L × 1 000 000	10¹²/L = /µL × 0

Reference range

Unit	Adults	Men	Women
10¹²/L	3.8 – 5.7	4.2 – 5.7	3.8 – 5.1
/µL	3 800 000 – 5 700 000	4 200 000 – 5 700 000	3 800 000 – 5 100 000

Source: MedlinePlus (NLM): RBC count · Last reviewed: 2026-10-14

Note from the source: Men 4.2-5.7, women 3.8-5.1 million cells per microliter (x 10^12/L) (MedlinePlus)

Frequently asked questions

How do I convert Red blood cells from 10¹²/L to /µL?

/µL = 10¹²/L × 1 000 000. In the other direction: 10¹²/L = /µL × 0.

What is the reference range of Red blood cells?

For adults the range is 3.8 – 5.7 10¹²/L (MedlinePlus (NLM): RBC count). Reference ranges differ between laboratories and partly by sex and age; use the range printed on your lab report.

Which units are used for Red blood cells?

Common units are 10¹²/L, /µL.