Tools · Free

10 health tools

Free, evidence-based calculators. They give you a number and, above all, a concrete decision for today. They don't replace a medical consultation.

Body Mass Index (BMI)

Relates your weight to your height.

Weight (kg) Height (cm)

Waist-to-height ratio

A better risk predictor than BMI alone.

Waist (cm) Height (cm)

Waist circumference

Abdominal fat and metabolic risk.

Waist (cm) Sex

Blood pressure

Classify your reading (AHA guideline).

Systolic (top) Diastolic (bottom)

Heart rate & zones

Your max HR and training zones.

Age (years)

Daily water

How much water you need per day.

Weight (kg)

Metabolism & calories

Your basal and total expenditure (Mifflin-St Jeor).

Weight (kg) Height (cm)

Age (years) Sex

Activity

Type 2 diabetes risk

Validated FINDRISC questionnaire.

Age (years) Sex

Weight (kg) Height (cm)

Waist (cm) Physical activity ≥30 min/day? Fruit/veg daily? Blood-pressure medication? Ever had high glucose? Family history of diabetes

Sugar in drinks

Turn grams into teaspoons.

Grams of sugar

Pack-years (smoking)

Accumulated smoking burden.

Cigarettes/day Years smoking

These tools are educational and provide general estimates. They do not diagnose or replace your doctor's assessment. If you have symptoms or doubts, seek care.