What is a healthy BMI range?

According to the WHO, a BMI between 18.5 and 24.9 is considered normal weight. Below 18.5 is underweight, 25-29.9 is overweight, and 30+ is obese.

Is BMI accurate for athletes?

BMI does not distinguish between muscle and fat. Muscular individuals may have a high BMI despite low body fat. Consider it a screening tool, not a definitive health measure.

Does age or gender affect BMI?

The standard BMI formula does not adjust for age or gender. Some health organizations use modified charts for children and elderly individuals.

BMI Calculator

Calculate your Body Mass Index (BMI) and find your weight category. Supports metric and imperial units.

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Disclaimer: This tool provides estimates for informational and educational purposes only. It does not constitute professional financial, medical, or legal advice. Please consult with a qualified professional before making any significant decisions based on these estimations.

Common Use Cases

general awareness and educational estimates
wellness planning alongside professional guidance
tracking simple ranges over time

What is BMI Calculator?

The BMI (Body Mass Index) Calculator computes your BMI from your height and weight, then categorizes the result into underweight, normal, overweight, or obese ranges as defined by the WHO. It supports both metric (kg/cm) and imperial (lbs/ft-in) units. While BMI is a useful screening tool, it does not account for muscle mass, bone density, or body composition.

How to Use This Tool

1Enter your height and weight
2Select metric or imperial units
3See your BMI value and weight category

Example

Input

Height: 170cm, Weight: 70kg

Output

BMI: 24.2 (Normal weight)

Before You Rely on This Result

UtilityNest keeps tools in this category focused on transparency: short instructions, a worked example, and plain-language guidance so you can review the result before you depend on it.

Check that the inputs reflect your real situation before you rely on the estimate.
Rules, rates, health needs, and legal requirements may vary by country, state, insurer, or provider.
Use this result as a starting point, then confirm important decisions with official sources or a qualified professional.

Frequently Asked Questions

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