What should I know 1: Body Mass Index (BMI)
Formula: Weight (kg) / Height (m)².
Body Mass Index (BMI)
Calculate your BMI to assess your weight status based on height and weight.
BMI is a simple screening tool to estimate body fatness. While useful, it may not be accurate for athletes with high muscle mass. Results vary for children, the elderly, and pregnant women.
Details
- Formula: Weight (kg) / Height (m)².
- 18.5 - 24.9 is considered a healthy range.
- 25 - 29.9 is overweight; 30+ is considered obese.
- Does not distinguish between muscle and fat mass.
- Specific charts exist for children and seniors.
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Method note
This tool produces estimates from common formulas. Results are informational and should not be used on their own for diagnosis or treatment decisions.
Frequently Asked Questions
Short answers to common questions about how to read this calculator page.
What should I know 2: Body Mass Index (BMI)
18.5 - 24.9 is considered a healthy range.
What should I know 3: Body Mass Index (BMI)
25 - 29.9 is overweight; 30+ is considered obese.
What should I know 4: Body Mass Index (BMI)
Does not distinguish between muscle and fat mass.
What should I know 5: Body Mass Index (BMI)
Specific charts exist for children and seniors.