BMI Calculator
Calculate Body Mass Index and health level
Daily Free Usage Exceeded
Used 11 / 10 times today
Log in to get more daily usage, or upgrade to PRO for unlimited access to all tools.
Resets automatically at midnight (00:00), free usage continues the next day.
📖 Instructions
BMI Calculator Instructions
Introduction
Calculate your Body Mass Index (BMI) from height and weight, with weight category classification and health advice.
How to Use
Notes
❓ FAQ
Is BMI suitable for everyone?
Not for pregnant women, children, athletes and other special groups; combine with other indicators.
What is the normal BMI range?
International standard: 18.5-24 is normal, with slight regional variations.
Is this tool free?
Yes, it is completely free and requires no registration.
🔗 Related Tools
📝 Related Articles
Before Putting on Autumn Weight at the Autumn Equinox, Calculate First: Your BMI Might Be Sweeter Than Mid-Autumn Mooncakes
Before putting on autumn weight at the Autumn Equinox, take a minute to calculate your BMI. Weight in kilograms divided by height in meters squared; a result between 18.5 and 24 is normal, over 24 needs attention, and over 28 should be taken seriously. In autumn your appetite is good, mooncakes and crabs take turns showing up, and before you know it, you've got a little belly. Calculating BMI isn't to make you feel bad, but to give you a sense of where you stand, so you can have some moderation when eating. If it's normal, don't indulge; if it's high, don't be anxious. Eat a little less and walk a little more, and that's better than anything.
tool-tutorialsHalf of the people posting BMI check-ins at the gym have calculated it wrong
More than half of the people posting BMI check-ins at the gym have miscalculated or are misled by not understanding the formula or using outdated data. BMI cannot distinguish between muscle and fat, causing fit individuals to be misjudged as overweight while those who are 'soft and puffy' appear normal. BMI is only a preliminary reference for health screening; true body assessment should focus on body fat percentage, waist circumference, and measurement changes—don't let a simple number define your efforts.
tool-tutorialsHow Many People Has BMI on Health Reports Actually Fooled?
The BMI index on health reports is actually a simple formula from over a hundred years ago. Its biggest blind spot is that it can't distinguish between muscle and fat weight. A muscular fitness coach might be labeled 'overweight,' while a 'thin' person with excess body fat shows as normal. The article uses real-life examples to break down BMI's limitations, reminding us to focus on body fat percentage and waist circumference, and not to be comforted or scared by a single number.