📌 Overview

Calculate your Body Mass Index (BMI) instantly from height and weight. Supports metric and imperial units with a healthy-weight category breakdown.

🏋️ BMI Calculator

Calculate your Body Mass Index (BMI) instantly from height and weight. Supports metric and imperial units with a healthy-weight category breakdown.

Units

Height (cm)

Weight (kg)

Enter your height and weight to see your BMI.

🔒 All processing happens in your browser. No data is uploaded to any server.

📋 How to Use

Choose metric (cm/kg) or imperial (in/lb) units.
Enter your height and weight.
Your BMI updates instantly below.
Read the category to see your healthy-weight status.

❓ FAQ

What is a healthy BMI range?

For most adults a BMI between 18.5 and 24.9 is considered healthy. Below 18.5 is underweight, 25–29.9 is overweight, and 30+ is obese.

Is BMI accurate for athletes?

BMI does not distinguish muscle from fat, so very muscular people may show a high BMI while being healthy. Use it as a general guide, not a diagnosis.

Does this work for children?

This calculator uses the adult formula. Children and teens should use age- and sex-specific BMI percentiles from a pediatric chart.

💡 Use Cases

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Health Checkups

Quickly self-assess weight status before a doctor visit.

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Fitness Goals

Track how your BMI changes as you lose or gain weight.

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Diet Planning

Use your category as a starting point for a nutrition plan.

🔗 Related Tools

📖 Deep Dive: BMI Calculator

Calculate your Body Mass Index (BMI) instantly from height and weight. Supports metric and imperial units with a healthy-weight category breakdown.

BMI Calculator is a free tool that runs 100% in your browser. No signup, no uploads — your data stays private. Perfect for everyday text and data tasks, saving you time and reducing mistakes.