Absolute Neutrophil Count (ANC) Calculator
Calculate ANC from same-CBC WBC, segmented neutrophils, and separately reported bands with explicit units and neutral limits.
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Formula and medical content are based on the references listed on this page. See sources, About, and Sources and Review Process.
About
Formula
Interpretation
Conventional adult descriptive ranges — not universal reference intervals or personal infection-risk categories
| ANC (cells/µL) | Conventional adult description |
|---|---|
| ≥1500 | Not below the conventional adult threshold |
| 1000–1499 | Commonly described as mild neutropenia |
| 500–999 | Commonly described as moderate neutropenia |
| <500 | Commonly described as severe neutropenia |
These are commonly used adult descriptions, not universal reference intervals. Age, laboratory method, cause, duration, immune state, and clinical condition affect interpretation. Pediatric reference information varies by age and setting. A single ANC does not determine personal infection risk or treatment. Duffy status may affect the appropriate reference context.
References
- Tefferi A, Hanson CA, Inwards DJ. How to Interpret and Pursue an Abnormal Complete Blood Cell Count in Adults. Mayo Clin Proc. 2005;80:923–936. PMID 16007898. PMCID PMC7127472. DOI 10.4065/80.7.923.
- Dale DC, Boxer L, Liles WC. The phagocytes: neutrophils and monocytes. Blood. 2008;112:935–945. PMID 18684880. DOI 10.1182/blood-2007-12-077917.
- Newburger PE, Dale DC. Evaluation and Management of Patients with Isolated Neutropenia. Semin Hematol. 2013;50:198–206. PMID 23953336. PMCID PMC3748385. DOI 10.1053/j.seminhematol.2013.06.010.
- National Cancer Institute. Definition of absolute neutrophil count.
- Freifeld AG, et al. Clinical Practice Guideline for neutropenic patients with cancer. Clin Infect Dis. 2011;52:e56–e93. PMID 21258094. DOI 10.1093/cid/cir073.
- Taplitz RA, et al. Outpatient Management of Fever and Neutropenia in Adults Treated for Malignancy. J Clin Oncol. 2018;36:1443–1453. PMID 29461916. DOI 10.1200/JCO.2017.77.6211.
- American Society of Hematology. Duffy-null associated neutrophil count (DANC).
- Legge SE, et al. The Duffy-null genotype and risk of infection. PMID 32959868. PMCID PMC7906776. DOI 10.1093/hmg/ddaa208.
- Merz LE, et al. Development of Duffy Null–Specific Absolute Neutrophil Count Reference Ranges. JAMA. 2023;329:2088–2089. DOI 10.1001/jama.2023.7467.
FAQ
ANC is WBC multiplied by the fraction of segmented or mature neutrophils plus only separately reported bands. If the laboratory directly reports ANC, retain that value.
The arithmetic assumes paired measurements from the same sample and time point; combining different samples can create a misleading product.
Add bands only if they are separately reported and are not already included in the neutrophil percentage. Otherwise adding them would double count them.
The page withholds ANC rather than treating unavailable bands as absent or displaying a partial total.
No. Immature granulocytes, I/T ratio, metamyelocytes, and myelocytes are not silently substituted for separately reported bands.
×10³/µL and ×10⁹/L share the same numeric value; cells/µL is entered directly.
They are components of one white-cell differential, so a sum above 100% is not a valid input.
No. They are static adult descriptions, not universal reference intervals or personal infection-risk categories.
Duffy-null associated neutrophil count can be a lower baseline without itself increasing infection risk. Race or ethnicity is not a proxy for Duffy status.
No. A single ANC cannot diagnose or exclude infection, shock, sepsis, or febrile neutropenia.
Published cancer-treatment definitions combine fever with ANC and sometimes an expected fall. This calculator has no temperature, symptoms, or future trend.
No. It does not prescribe medicines, doses, isolation, referral, admission, discharge, or treatment.
Serial values can document change, but this page does not interpret a trend or predict the next result.
No. Children need age- and setting-specific reference information and clinical assessment.
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Disclaimer
Educational and informational reference only. Not intended to replace professional medical advice, diagnosis, treatment, or independent verification.