Absolute Count Calculator

Most reports give percentages. If the lab prints absolute segs and bands, use the absolute mode and leave the WBC out of it.
Total WBC. Typical adult range 4.5-11.0 x10^3/µL (4,500-11,000 cells/µL).
x10^3/µL and x10^9/L are the same number. Choose cells/µL only if the report shows a figure like 6,000.
If the report gives one combined "neutrophils %", enter it here and leave bands at 0 - it already includes bands.
Immature neutrophils, included in every published ANC formula. Enter 0 if not reported separately.
Used in absolute-differential mode only.
Used in absolute-differential mode only. Enter 0 if not reported.
CTCAE Grade 1 is "< LLN to 1500". Default 1500/µL (StatPearls adult range 1500-8000), which leaves no Grade 1 band; the SCNIR range starts at 1800. Use the figure printed on the report.
Absolute neutrophil count
3,480 cells/µL
Absolute Neutrophil Count (ANC) Calculator
Absolute neutrophil count
3.480 x10^9/L
CTCAE v5.0 grade (neutrophil count decreased)
Not graded (CTCAE v5.0)
CTCAE band applied
ANC >= 1500/µL (LLN 1500 leaves no Grade 1 band)
Clinical severity
Not neutropenic (>= 1500/µL)
Meets IDSA neutropenia definition (< 500/µL)
No - ANC >= 500/µL
Neutrophils used (segs + bands)
58.0 %
WBC used
6,000 cells/µL
Method
Percentage differential: ANC = WBC x (segs % + bands %) / 100
Worked out from NCI CTCAE v5.0 - Neutrophil count decreased, Grades 1-4 (NCI Thesaurus definitions served by NIH MedGen) and 8 other sources.
Boundary convention: each band includes its lower value and excludes its upper value (500 is Grade 3, 1000 is Grade 2, 1500 is Grade 1 only when the LLN is above 1500). CTCAE v6.0 (2026) thresholds are not implemented.
Educational tool. CTCAE grading and neutropenia severity are for information only; treatment decisions, including febrile neutropenia management, belong to the treating clinician.

How this is worked out

5 steps
  1. WBC = 6 x10^3/µL (= 6 x10^9/L) x 1000 = 6000 cells/µL
  2. Neutrophil fraction = (55% segs + 3% bands) / 100 = 0.58
  3. ANC = 6000 x 0.58 = 3480 cells/µL = 3.48 x10^9/L
  4. CTCAE v5.0 (lower bound inclusive, upper exclusive): Not graded - ANC >= 1500/µL (LLN 1500 leaves no Grade 1 band)
  5. Clinical scale (StatPearls / IDSA): Not neutropenic (>= 1500/µL)

Results are general information, not financial, tax, legal, medical or engineering advice.