Medical Calculators

Free, private calculators that run entirely in your browser — nothing you type is sent anywhere or stored. Built on the published formulas clinicians use, with plain-language explanations of what each result means.

eGFR CalculatorKidney filtration rate from creatinine, age and sex — CKD-EPI 2021, the current race-free standard.
Open the calculator →Creatinine Clearance CalculatorCockcroft-Gault clearance in mL/min — the formula used to adjust medicine doses for the kidneys.
Open the calculator →Urine ACR CalculatorAlbumin-to-creatinine ratio in mg/g with the KDIGO A1–A3 categories for kidney damage.
Open the calculator →BMI CalculatorBody mass index from height and weight, in metric or imperial units, with WHO categories.
Open the calculator →Pregnancy Due Date CalculatorDue date and current gestational age from the first day of the last menstrual period.
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