BMI Calculator

Calculate your Body Mass Index (BMI).

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Features

Metric & Imperial Units

Seamlessly switch between Kilograms/Meters and Pounds/Inches.

Health Category Analysis

Instantly find out if you are Underweight, Normal Weight, Overweight, or Obese.

Ideal Weight Range

Discover the healthy weight range recommended for your specific height.

Precise Calculation

Get accurate BMI values calculated to one decimal place.

About BMI Calculator

The BMI Calculator is a useful tool that measures whether you have a healthy body weight for a given height. It is used to screen for weight categories that may lead to health problems. BMI Formula Metric Units: BMI = Weight (kg) / (Height (m))² Imperial Units: BMI = 703 × Weight (lbs) / (Height (in))² Note: BMI is a simple calculation and does not account for muscle mass, bone density, or body composition.

How to Use BMI Calculator

  • 1
    Select Unit System

    Choose between Metric (kg/cm) or Imperial (lbs/ft+in) units.

  • 2
    Enter Height

    Input your height in the selected unit.

  • 3
    Enter Weight

    Input your current weight.

  • 4
    View Results

    See your BMI, Health Category, and Ideal Weight Range instantly.

Frequently Asked Questions

No, it doesn't account for muscle mass (athletes may show as overweight).
Generally 18.5 to 24.9.
No, children use percentiles based on age and gender.
It is a screening tool, not a diagnostic one. Other factors like blood pressure and cholesterol are also important.
Consult a healthcare professional to discuss a personalized plan for nutrition and exercise.
Checking every few months can help you track trends, but avoid obsessing over small daily fluctuations.