Cancer Tools and Calculators
Free calculators for the numbers that come up in cancer care: blood counts, chemotherapy dosing, kidney function, smoking history, PSA follow-up and nutrition.
Every tool names the formula it uses and links the primary source. Nothing you enter leaves your browser.
Blood counts
Make sense of the values on a blood count report and know when a low neutrophil count needs a phone call.
Understanding Your Blood Test Results
Enter the values and reference ranges from your own blood count report and get a plain-language explanation of what each marker measures — and what a low or high result can mean during cancer treatment.
Open calculatorAbsolute Neutrophil Count (ANC) Calculator
Work out your absolute neutrophil count from the white cell count and neutrophil percentage on your blood report, see the neutropenia grade, and know when a fever means calling for help.
Open calculatorTreatment and dosing
Understand how body surface area and kidney function turn a protocol dose into your dose.
Body Surface Area (BSA) and Dose Calculator
Calculate body surface area with the Du Bois or Mosteller formula and see how a chemotherapy dose in mg/m² becomes a dose in mg.
Open calculatorCreatinine Clearance and Carboplatin Dose Calculator
Estimate kidney function from serum creatinine with the Cockcroft-Gault equation and see how a carboplatin dose follows from the Calvert formula and a target AUC.
Open calculatorRisk and screening
Turn a smoking history into pack-years and check the criteria lung cancer screening programmes use.
Follow-up
Follow a marker over time the way your specialist does.
Nutrition and body composition
Energy and protein needs during and after treatment, weight loss that matters, and body composition.
Nutrition and Weight Calculator for Cancer Treatment
Estimate energy and protein needs during and after treatment using ESPEN guidance, check whether recent weight loss needs attention, and see your BMI in context.
Open calculatorBody Fat and Lean Mass Calculator
Estimate body fat percentage from neck, waist and hip measurements with the US Navy method, see fat and lean mass, and learn why muscle matters during cancer treatment.
Open calculatorLooking for the words behind the numbers?