Online BMI Calculator

A BMI calculator is a tool to estimate your Body Mass Index (BMI) based on your height and weight. It helps categorize whether you're underweight, normal weight, overweight, or obese. Keep in mind that it's a basic indicator and doesn't consider factors like muscle mass or body fat percentage.


To manually calculate BMI, measure your weight and height, square your height, divide your weight by the squared height, and interpret the result using BMI categories for an indication of your weight status.

Your Height

Your Weight

BMI Categories:
Underweight = <18.5
Normal weight = 18.5–24.9
Overweight = 25–29.9
Obesity = BMI of 30 or greater

Why calculate your BMI?

Understanding your BMI is crucial for achieving and maintaining optimal health. Explore the reasons why calculating your BMI is essential and take control of your health journey towards unlocking a healthier, happier you.

Health Awareness

Raises awareness of possible health risks related to weight.

Weight Management

Allows you to set realistic weight goals and track your progress over time.

Personalized Health Plans

Helps healthcare experts or nutritionists develop health plans tailored to your specific needs.

Motivation & Accountability

Offers a tangible measurement that you can use to track your progress and celebrate milestones.

RENPHO Health App

Using your Elis Smart Scale, you can automatically learn and note what your BMI is when you use the RENPHO Health App. Here are some of the exciting features available to you upon downloading the app.

Track up to 13 health metrics including BMI, body fat percentage, muscle mass, visceral fat, and more

Check your weekly/monthly/yearly progress in real-time

Set your personalized weight and body fat goals

Track your weekly/monthly/yearly progress in real-time

Syncs with popular health apps such as Apple Health and Google Fit

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App Store

Make your health journey smarter & simpler.

Take control of your health journey and optimize your BMI – Buy the Elis 1 Smart Body Scale today!

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