Features
About BMI Calculator
Our free online BMI calculator helps you calculate your Body Mass Index (BMI) quickly and accurately. BMI is a screening tool that uses your height and weight to estimate body fat and assess health risks.
This comprehensive BMI calculator provides:
- Accurate BMI Calculation: Calculate your BMI using metric (kg, cm) or imperial (lbs, ft/in) units
- BMI Category Classification: Determine if you're underweight, normal weight, overweight, or obese
- Ideal Weight Range: Get your recommended healthy weight range based on your height
- Personalized Health Recommendations: Receive tailored advice based on your BMI category
- Health Risk Analysis: Understand potential health risks associated with your BMI
- Fitness Plan Suggestions: Get weekly and monthly fitness plans to help achieve your health goals
- Visual BMI Scale: See where you fall on the BMI scale with an interactive visualization
BMI Categories:
- Underweight: BMI less than 18.5 - May indicate nutritional deficiencies or other health issues
- Normal Weight: BMI 18.5 to 24.9 - Generally considered healthy weight range
- Overweight: BMI 25 to 29.9 - May increase risk of health problems
- Obese: BMI 30 or higher - Significantly increased risk of health problems
Important Note: BMI is a screening tool and doesn't directly measure body fat or account for muscle mass, bone density, or body composition. Athletes with high muscle mass may have a higher BMI despite being healthy. Always consult with a healthcare professional for personalized health advice.
All calculations are performed locally in your browser, ensuring complete privacy and security. No data is collected, stored, or transmitted to any server.
Frequently Asked Questions
How do I calculate my BMI?
Simply enter your height and weight into the BMI calculator, then click 'Calculate BMI'. The calculator will automatically compute your BMI using the formula: weight (kg) / height (m)² or weight (lbs) / height (in)² × 703.
Is the BMI calculator free?
Yes, our BMI calculator is completely free to use. No registration, no fees, and no hidden costs.
What is a healthy BMI range?
A healthy BMI typically ranges from 18.5 to 24.9. Below 18.5 is considered underweight, 25-29.9 is overweight, and 30 or above is considered obese. However, BMI is a screening tool and doesn't account for muscle mass, bone density, or body composition.
Is my data private?
Yes, all calculations are performed locally in your browser. We don't collect, store, or transmit any of your personal information.
Can I use metric or imperial units?
Yes, our BMI calculator supports both metric units (kilograms and meters/centimeters) and imperial units (pounds and feet/inches). You can switch between units using the unit selector.
What health recommendations do you provide?
Based on your BMI, we provide personalized health recommendations including dietary suggestions, exercise tips, and lifestyle changes. We also offer weekly and monthly fitness plan suggestions tailored to your BMI category.
How accurate is BMI?
BMI is a useful screening tool but has limitations. It doesn't distinguish between muscle and fat, so athletes or very muscular individuals may have a higher BMI despite being healthy. It also doesn't account for age, gender, or body composition. For a complete health assessment, consult with a healthcare professional.
Can I use this on mobile devices?
Absolutely! Our BMI calculator is fully responsive and works perfectly on desktop, tablet, and mobile devices.
Feedback & Suggestions
We'd love to hear from you! Share your thoughts, suggestions, or report any issues.