Hematology · Differential count

Absolute Neutrophil Count

Convert WBC and differential percentages into ANC while keeping bands explicit and optional.

Evidence recordSources and method currentVersion 0.1 · Updated July 17, 2026

Step 1

Enter CBC differential

Private by design. Values are calculated on this device and are not saved or sent to analytics.

WBC Required

×10³/µL

Segmented neutrophils Required

Bands (optional)

Step 2

Calculated locally

Absolute neutrophil countCells per microliter

0 cells/µL

Equivalent to cells/mm³.

Total neutrophil fractionSegments plus bands

0 %

Verify how the reporting laboratory labels immature granulocytes.

No dose hold or isolation rule is generated.Use the treatment protocol, drug labeling, trend, infection status, timing, and institutional policy.

Evidence packet

This versioned record keeps the citations, equation or decision rule, units, test coverage, intended population, and exclusions attached to the tool.

Intended population

Patients with a WBC count and manual or automated differential reporting segmented neutrophils and, when available, bands.

Equation record

ANC = WBC (cells/µL) × (segmented neutrophils % + bands %) / 100.

Unit handling

WBC is entered as ×10³/µL and converted to cells/µL; differential components are percentages.

Test coverage

CDC reference example, zero bands, percentage-sum validation, and invalid inputs.

Do not skip

Verify how the laboratory reports bands and immature granulocytes before entry.
Do not infer a treatment hold, dose change, isolation status, or antimicrobial plan from the calculated number alone.
Protocol thresholds vary by medication, disease, timing, and institution.
Transcription or unit errors in WBC have a 1,000-fold consequence.