Free Health Tools

Quick Health Calculators

Simple tools to understand your numbers — not a diagnosis, and not a substitute for talking to a doctor.

These tools are informational only. They don't account for your full medical history, muscle mass, pregnancy, or other individual factors. If a result concerns you, or you have symptoms, talk to a Health1 doctor rather than relying on a calculator.

BMI Calculator

Blood Pressure Checker

Ideal Body Weight

BMI Calculator

Body Mass Index — a general screening measure based on height and weight.

Height (cm)

Weight (kg)

Standard adult BMI categories: Underweight <18.5 · Normal 18.5–24.9 · Overweight 25–29.9 · Obese 30+. BMI doesn't distinguish muscle from fat, so athletes and older adults should interpret it with that in mind.

Blood Pressure Category Checker

Enter a reading to see which category it falls into.

Systolic (top number)

Diastolic (bottom number)

NormalBelow 120 / 80

Elevated120-129 / below 80

High (Stage 1)130-139 / 80-89

High (Stage 2)140+ / 90+

Hypertensive Crisis180+ / 120+ — Seek care immediately

Ideal Body Weight Estimator

A rough reference range based on height, using the commonly used Devine formula.

Gender

Height (cm)

This is a population-level reference, not a personal target — healthy weight varies by build, muscle mass, and age. Use it as a general guide only.

Talk to a Health1 Doctor About Your Results

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