Absolute Eosinophil Count Calculator

Calculate the absolute eosinophil count from WBC and eosinophil percentage.

Aug 31, 2026 Hematology #absolute-count #eosinophils

Calculate

All fields required unless noted

WBC count (10^9/L)

Eosinophils (%)

Calculating...

Enter your values and press Calculate to see the result.

Reference Ranges Used

AEC (Absolute Eosinophil Count) - Adult 0–0.5 ×10³/µL

Formula & Clinical Notes

Formula

AEC = WBC × Eosinophils (%) / 100

Clinical Notes

Eosinophilia is defined as an AEC above 0.5 × 10^9/L. Common causes include allergic disorders, parasitic infections, drug reactions, and eosinophilic disorders.

Sources

Merck Manual Professional — Eosinophilia