About BMI Calculator

Enter your height and weight to instantly calculate your Body Mass Index (BMI), see which weight category you fall into (underweight through obese), and view your healthy weight range. Supports both metric (kg/cm) and imperial (lbs/ft-in) units. While BMI is just one health indicator, it's a widely-used screening tool recommended by the CDC and WHO.

How to Use BMI Calculator

1. 1Choose metric (cm/kg) or imperial (ft-in/lbs) units
2. 2Enter your height using the sliders or type directly
3. 3Enter your weight
4. 4Your BMI and weight category appear instantly, along with a healthy weight range for your height

When to Use BMI Calculator

• ▸Getting a quick health screening reference
• ▸Tracking weight changes over time as part of a fitness plan
• ▸Understanding recommended weight ranges for your height
• ▸Preparing for medical appointments or insurance health assessments

Frequently Asked Questions

Is BMI an accurate health indicator?

BMI is a screening tool, not a diagnostic. It doesn't distinguish between muscle and fat, so very muscular individuals may be classified as 'overweight.' Always consult a healthcare provider for a complete health assessment.

What are the BMI categories?

Underweight: below 18.5 | Normal: 18.5-24.9 | Overweight: 25-29.9 | Obese: 30 and above. These are the standard WHO classifications.