Those Boring Tools
Health & Fitness CalculatorsPrivate by design

BMI Calculator

Enter your height and weight to calculate your Body Mass Index and see which standard weight category it falls into.

How to use this tool

  1. 1Enter your height in inches.
  2. 2Enter your weight in pounds.
  3. 3See your BMI and weight category instantly.

Frequently asked questions

Is BMI an accurate measure of health?+

It's a rough screening tool — it doesn't account for muscle mass, bone density, or where fat is distributed, so a muscular athlete can score "overweight" despite being lean.

What are the standard BMI categories?+

Under 18.5 is underweight, 18.5-24.9 is normal weight, 25-29.9 is overweight, and 30+ is obese, per the standard CDC/WHO thresholds.

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