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WBC Unit Converter
White Blood Cells (WBC), or leukocytes, are a crucial component of the immune system. The WBC count is a standard part of the Complete Blood Count (CBC) used to detect infection, inflammation, leukemia, and other hematologic disorders.
Laboratories report WBCs in various formats. Some use the raw count per microliter (e.g., 5,000/μL), while others use shorthand units like K/μL or the SI unit (×109/L). This calculator standardizes these values.
Raw Count
AbsoluteActual number of cells (e.g., 5000). Also /mm³.
Standard / SI Units
Shorthand notation (e.g., 5.0). 10&sup9;/L = G/L.
Clinical Context
Reference Ranges (Adults):
• Standard: 4.5 – 11.0 ×109/L (4,500 – 11,000 cells/μL).
Note: Ranges may differ for infants, children, and during pregnancy.
Terminology:
• Leukocytosis: Elevated WBC count (Infection, inflammation, stress, leukemia).
• Leukopenia: Low WBC count (Viral infections, chemotherapy, bone marrow failure).
Conversion Logic:
1 K/μL = 1000 cells/μL.
1 ×109/L = 1000 cells/μL.
Therefore: 4.5 K/μL = 4.5 ×109/L = 4,500 cells/μL.
Clinical References
How to Use This Converter
Follow these steps to normalize WBC values.
Identify the Unit
Check if your report uses the thousands format (e.g., 5.0) or the full count (e.g., 5000).
Enter Values
Input the number into the appropriate field. Entering “5000” in cells/μL will automatically convert to “5.0” in the other fields.
Reset
Use the Clear button to reset all fields.
Frequently Asked Questions
Yes. 4.5 × 109 cells per liter is mathematically equal to 4.5 × 103 cells per microliter.
G/L stands for Giga per Liter. Giga means 109 (billion). So 5.0 G/L is the same as 5.0 × 109/L.