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BMI Calculator

Calculate your Body Mass Index and see which health category you fall into.

Height

About BMI Calculator

BMI Calculator computes your Body Mass Index from height and weight in metric (cm/kg) or imperial (ft, in/lbs) units. The result is shown alongside the standard WHO weight category: Underweight, Normal weight, Overweight, or Obese.

BMI is a simple screening tool used by healthcare providers as one indicator of weight-related health risk. It's not a diagnostic tool and doesn't account for muscle mass, bone density, or fat distribution — but it provides a quick reference point.

The tool also shows where your BMI falls on a visual scale and what weight range falls within the Normal BMI category for your height.

Features

  • Metric (cm/kg) and imperial (ft, in/lbs) inputs
  • BMI value and WHO weight category
  • Visual BMI scale indicator
  • Normal weight range for your height

Common Use Cases

  • Quick health self-assessment
  • Tracking weight changes relative to BMI category
  • Healthcare intake screening
  • Fitness goal reference point

Frequently Asked Questions

What are the BMI categories?

Underweight: below 18.5 · Normal: 18.5–24.9 · Overweight: 25–29.9 · Obese: 30 and above. These are WHO standard categories.

Is BMI accurate for athletes?

No. BMI doesn't distinguish between fat and muscle. Athletes with high muscle mass often have elevated BMIs that don't reflect elevated health risk.