BMI Calculator

Body Mass Index with WHO category — underweight, normal, overweight, obese.

Inputs

20250
80230

Result

Your BMI
22.9
Healthy
Normal weight
  • CategoryNormal weightHealthy
  • Healthy weight rangeBMI 18.5–24.9 for your height56.7 kg – 76.3 kg
  • Weight to reach normal (low end)✅ already in range
  • Height175.0 cm

How to use this calculator

  • Pick your preferred units (metric or imperial).
  • Enter your weight and height as accurately as possible.
  • Read the category and the healthy weight range for your height.

About this tool

Body Mass Index (BMI) is a simple, widely used screening tool that estimates body fat from weight and height. The WHO categories — underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), obese (≥30) — apply to most adults but have known limitations. BMI doesn't distinguish muscle from fat, so very athletic people may register "overweight" without being unhealthy. It also doesn't account for fat distribution, ethnicity, or age. Treat your BMI as a starting point for a conversation with a healthcare provider, not a diagnosis.

Frequently asked

It's a quick screening tool, not a diagnosis. Athletes with high muscle mass often show "overweight" or even "obese" BMI without being unhealthy. Pair BMI with other measures (waist-hip ratio, body fat %).

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