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About this tool
Complete Blood Count interpretation with differential analysis, anemia classification, infection pattern recognition, and clinical recommendations.
The CBC Report Interpreter takes the numbers off a Complete Blood Count and flags each one high, low or normal against standard adult reference ranges, then reads the pattern across them — classifying anaemia from the red-cell indices, converting the differential percentages into absolute counts, and pairing the platelet count with MPV. Haemoglobin, RBC and haematocrit ranges switch by sex (haemoglobin 13.5-17.5 g/dL male, 12.0-16.0 g/dL female), while WBC 4.5-11.0 K/uL, platelets 150-400 K/uL and MCV 80-100 fL are shared. It is an educational reading aid for students and for patients trying to follow a report before their appointment, not a diagnosis.
Open CBC Report Interpreter on AltFTool — it loads instantly in your browser.
Choose Male or Female, then type your WBC, RBC, Hemoglobin, Hematocrit and Platelet figures, plus the MCV, MCH, MCHC, RDW and MPV indices and the differential percentages.
Press Interpret CBC to grade every value against the adult reference ranges and multiply the differential percentages by the WBC into absolute counts.
Read the anaemia morphology call and the flagged highs and lows, then use Copy Report or Download to save a CBC_Report text file.
MCV, MCH, MCHC and RDW are combined into a morphology call — microcytic hypochromic, macrocytic, normocytic normochromic or mixed — with the usual differentials for each.
Percentages are multiplied by the WBC to give absolute neutrophil, lymphocyte, monocyte and eosinophil counts, which is where the clinically meaningful cut-offs sit.
Haemoglobin, RBC and haematocrit are graded against male or female ranges rather than one averaged band, so borderline results are not misread.
This tool uses 13.5-17.5 g/dL for men and 12.0-16.0 g/dL for women, with haematocrit at 41-53% and 36-46% respectively. Laboratories publish their own ranges and the ones on your report take precedence.
MCV below 80 fL means the red cells are smaller than normal — microcytic. Combined with a low MCHC it points to a microcytic hypochromic picture, whose common causes are iron deficiency, thalassaemia, anaemia of chronic disease and sideroblastic anaemia; iron studies are the usual next step.
An absolute neutrophil count below 1.5 K/uL is neutropenia and raises infection risk; below 0.5 is severe. The tool calculates ANC as the neutrophil percentage divided by 100 and multiplied by the WBC, because the percentage alone can look normal while the absolute count is not.
No. It applies fixed reference ranges and pattern rules to numbers you type in, with no knowledge of your symptoms, medications, pregnancy, age or previous results — all of which change what a value means. Take any flagged result to a qualified clinician.