HematologyFormula

NLR — Neutrophil-to-Lymphocyte Ratio Calculator

Calculates the Neutrophil-to-Lymphocyte Ratio (NLR) from CBC differential — a widely validated systemic inflammation marker calculated as: NLR = Absolute Neutrophil Count ÷ Absolute Lymphocyte Count. NLR reflects the balance between the innate immune system (neutrophils — pro-inflammatory) and adaptive immune system (lymphocytes — anti-tumor, anti-viral). Elevated NLR indicates a state of systemic inflammation with relative immune suppression. NLR has been validated as a prognostic marker across oncology, cardiovascular disease, sepsis, COVID-19, and post-surgical outcomes.

Parameters

Absolute Neutrophil Count (ANC) — or calculate from WBC × neutrophil%/100(× 10⁹/L)

Absolute Lymphocyte Count (ALC) — or calculate from WBC × lymphocyte%/100(× 10⁹/L)

Awaiting input

Fill in the parameters to see your result

HematologyFormula

NLR — Neutrophil-to-Lymphocyte Ratio Calculator

Calculates the Neutrophil-to-Lymphocyte Ratio (NLR) from CBC differential — a widely validated systemic inflammation marker calculated as: NLR = Absolute Neutrophil Count ÷ Absolute Lymphocyte Count. NLR reflects the balance between the innate immune system (neutrophils — pro-inflammatory) and adaptive immune system (lymphocytes — anti-tumor, anti-viral). Elevated NLR indicates a state of systemic inflammation with relative immune suppression. NLR has been validated as a prognostic marker across oncology, cardiovascular disease, sepsis, COVID-19, and post-surgical outcomes.

Parameters

Absolute Neutrophil Count (ANC) — or calculate from WBC × neutrophil%/100(× 10⁹/L)

Absolute Lymphocyte Count (ALC) — or calculate from WBC × lymphocyte%/100(× 10⁹/L)

Awaiting input

Fill in the parameters to see your result