Use this calculation to reproduce a derived blood-cell count, ratio, or coagulation screening value from results reported in the required units and collected at the same time.

White blood cell count

A finite measured or assumed value greater than or equal to 0, expressed in K/µL.

Neutrophil percentage

A finite measured or assumed value from 0 through 100, expressed in %.

The implementation follows this calculation rule: Compute absolute neutrophil count from white blood cell count and neutrophil percentage.

Absolute neutrophil count

The calculated absolute neutrophil count in cells/µL.

This calculator cannot diagnose disease or bleeding risk. Analyzer methods, laboratory reference ranges, anticoagulants, sample quality, age, pregnancy, medication, and clinical context can materially affect interpretation. Ratios and percentages become unstable when their denominator is small, uncertain, or defined differently between samples.

Use the complete laboratory report and local reference intervals, and inspect trends rather than one isolated value. A clinician may require a blood film, differential count, mixing study, or another confirmatory test.

• Differential Absolute Neutrophil

  Compute the absolute neutrophil count from the neutrophil differential percentage and the total white blood cell count.

• Hematocrit %

  Compute hematocrit percent as the red cell volume divided by the total blood sample volume times 100.

• MCH Calculator

  Compute mean corpuscular hemoglobin from hemoglobin and red blood cell count.