Our free medical tools

Calculate and understand your results with confidence — calculators built on established medical formulas, with a clear explanation of what your result means.

Every tool is medically reviewed, free, and needs no sign-up

Free medical tool

BMI Calculator

Check whether your weight is in the healthy range for your height.

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Free medical tool

Calorie Calculator

Your daily calorie needs to keep, lose or gain weight.

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Free medical tool

Due Date Calculator

Your estimated due date and current week of pregnancy.

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Free medical tool

Blood Pressure Checker

Classify your reading using American Heart Association guidelines.

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Free medical tool

Diabetes Risk Test

Estimate your risk of type 2 diabetes in one minute.

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Free medical tool

Ideal Weight Calculator

A healthy target weight for your height, sex and body frame.

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Free medical tool

Water Intake Calculator

How many litres you need a day for your weight, activity and climate.

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Free medical tool

eGFR Calculator

Estimate kidney filtration rate (eGFR) from your creatinine result.

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