Clinical tools
Hematology Calculators
Hematology tools include one same-record CBC / Differential workspace plus distinct red-cell and iron-related indices.
Choose a tool
CBC / differential workspace
CBC / Differential Calculator & WorkspaceEnter one CBC/differential record to calculate available five-part white-cell absolute counts plus NLR, PLR, LMR, and SII with explicit source provenance.Reticulocyte production
Reticulocyte Production Index (RPI) CalculatorCalculate adult RPI from relative reticulocyte percentage (RET%) and paired hematocrit using the fixed historical Hillman model and transparent maturation correction.Microcytosis index
Mentzer Index CalculatorCalculate the Mentzer Index from same-CBC MCV and RBC count after microcytosis has been identified.Iron saturation
Transferrin Saturation Calculator (TSAT)Calculate TSAT from same-assessment serum iron and laboratory-reported TIBC with exact unit normalization.Important limits
- CBC-derived absolute counts and ratios are nonspecific and do not establish infection, inflammation, malignancy, or prognosis.
- Mentzer Index, RPI, and iron arithmetic cannot establish a hematologic diagnosis on their own.
- These tools do not recommend transfusion, antibiotics, iron, referral, or another treatment.