Blood count

WBC unit converter

White blood cell count

Also known as: White blood cells, White blood cell count, White cell count, WCC, Leukocytes, Leucocytes

Converter

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

10⁹/L /µL

Worked example

7.75 10⁹/L (middle of the reference range) = 7 750 /µL

Conversion formulas

/µL	/µL = 10⁹/L × 1000	10⁹/L = /µL × 0.001

Reference range

Unit	Adults
10⁹/L	4.5 – 11
/µL	4500 – 11 000

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

Note from the source: 4,500-11,000 per microliter (4.5-11.0 x 10^9/L) (MedlinePlus)

Frequently asked questions

How do I convert WBC from 10⁹/L to /µL?

/µL = 10⁹/L × 1000. In the other direction: 10⁹/L = /µL × 0.001.

What is the reference range of WBC?

For adults the range is 4.5 – 11 10⁹/L (MedlinePlus (NLM): WBC 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 WBC?

Common units are 10⁹/L, /µL.