Health Calculators
Search or browse by category. Save any result to your Health History.
15 calculators
BMI Calculator
GeneralCalculate your Body Mass Index and understand your weight classification using standard WHO categories.
eGFR Calculator
Kidney & LabEstimate your glomerular filtration rate using the CKD-EPI 2021 equation to assess kidney function.
HbA1c to Average Glucose
MetabolicUnderstand how your HbA1c may relate to your average blood sugar levels over time.
LDL Cholesterol Calculator
CardioEstimate LDL cholesterol from your standard lipid panel using the Friedewald equation.
Urea to Creatinine Ratio
Kidney & LabCalculate the urea (BUN) to creatinine ratio from your kidney blood test results.
Corrected Calcium Calculator
Kidney & LabAdjust measured serum calcium for albumin levels to get a more accurate calcium assessment.
HOMA-IR Calculator
MetabolicCalculate the HOMA-IR index from fasting glucose and fasting insulin.
Basal Metabolic Rate (BMR)
GeneralEstimate your baseline daily energy needs using the Mifflin–St Jeor equation.
Ideal Body Weight
GeneralA reference weight range from the Devine formula, a construct used for medication dosing.
Daily Water Intake
GeneralGet a rough estimate of your daily hydration needs based on weight and activity level.
Pregnancy Due Date
PregnancyEstimate your due date based on the first day of your last menstrual period.
Body Fat Percentage
GeneralEstimate body fat percentage using standard body measurements (US Navy formula).
Anion Gap Calculator
Kidney & LabCalculate the anion gap from serum electrolytes to help interpret acid-base disturbances.
Body Surface Area (BSA)
GeneralCalculate body surface area using the Mosteller formula, commonly used in medication dosing.
Waist-to-Height Ratio
GeneralAssess central adiposity and cardiometabolic risk using your waist circumference and height.
How Your Health Data Becomes Insights
Run health calculators, save your results, and track how your health indicators evolve over time.
Healio360 combines your data to identify trends and generate personalised health insights.
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Health Intelligence Insights
Trends & personalised analysis
More health calculators are in development. Results are for educational use only and do not replace professional medical advice.
Sources & Methodology
Our calculators and health guidance draw on widely recognised clinical and public-health references. Each calculator also lists the specific sources relevant to it. These tools are educational and do not replace professional medical advice.
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