Haematology · Internal Medicine

Absolute Lymphocyte Count calculator

Enter the published formula inputs below to calculate and interpret this score.

Clinical inputs

White blood cell count (×10³/µL)

×10³/µL

Allowed range: 0–100 ×10³/µL

Lymphocytes (% of WBC)

Allowed range: 0–100 %

Result

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Clinical inputs

White blood cell count (×10³/µL)Accepted range: 0 to 100
Lymphocytes (% of WBC)Accepted range: 0 to 100

Primary source

Absolute lymphocyte count (×10³/µL) = WBC (×10³/µL) × lymphocytes (%) ÷ 100. Grades from the NCI Common Terminology Criteria for Adverse Events (CTCAE), lymphocyte count decreased: grade 1 <LLN to 800/mm³, grade 2 <800 to 500/mm³, grade 3 <500 to 200/mm³, grade 4 <200/mm³ (table read: NCI CTCAE grading, Cell Rep 2017;18(4):947-960 Table 2, DOI 10.1016/j.celrep.2016.12.075; same cutoffs in CTCAE v5.0, NCI 2017). Grade 1 needs the local lower limit of normal, so counts ≥800/mm³ are shown ungraded. (2017)

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