Absolute Eosinophil Count (AEC, eosinophilia grading)
Absolute eosinophil count: total WBC × eosinophil percentage; ~500–1500 is mild, 1500–5000 moderate, and > 5000 cells/µL marked hypereosinophilia.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Total WBC
- 8 ×10⁹/L
- Eosinophil percentage
- 12 %
Result: Absolute eosinophil count 960 cells/uL — mild eosinophilia (500-1500).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- < 500
- Normal.
- 500-1500
- Mild eosinophilia.
- 1500-5000
- Moderate; meets the count threshold for hypereosinophilia (>= 1500).
- > 5000
- Severe. AEC = WBC x eosinophil %. A lab value, not a diagnosis.
What you enter
- Total WBC
- Eosinophil percentage
How this is calculated
Valent P, Klion AD, Horny HP, et al. Contemporary consensus proposal on criteria and classification of eosinophilic disorders and related syndromes. J Allergy Clin Immunol. 2012;130(3):607-612. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.