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Free tools to help you understand your body better. Calculate BMI, body fat, calories, macros, and more with instant personalized results.

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BMI Calculator

Start with the most popular health metric

BMI Calculator
Enter your measurements to calculate your Body Mass Index
What is BMI?

Body Mass Index (BMI) is a simple measure using your height and weight to work out if your weight is healthy. It's calculated by dividing your weight in kilograms by your height in meters squared.

BMI Categories

UnderweightBelow 18.5
Normal weight18.5 - 24.9
Overweight25 - 29.9
Obese30 and above

Note: BMI is a general indicator and may not be accurate for athletes, elderly, pregnant women, or those with high muscle mass. Always consult a healthcare professional for personalized advice.

Maintain a Healthy Lifestyle

Follow these evidence-based tips to achieve and maintain a healthy weight.

Health Tips

Stay Hydrated

Drink at least 8 glasses of water daily to maintain optimal body function and metabolism.

Balanced Diet

Consume a variety of fruits, vegetables, lean proteins, and whole grains for proper nutrition.

Regular Exercise

Aim for at least 150 minutes of moderate aerobic activity or 75 minutes of vigorous activity weekly.

Quality Sleep

Get 7-9 hours of quality sleep each night to support your body's recovery and weight management.

Common Questions

Learn more about BMI and healthy weight management.

Frequently Asked Questions

How accurate is BMI?

BMI is a useful screening tool but has limitations. It doesn't distinguish between muscle and fat mass, so athletes may have a high BMI despite being healthy. It's best used alongside other health indicators.

What's a healthy rate of weight loss?

A safe and sustainable rate is 0.5-1 kg (1-2 lbs) per week. Rapid weight loss can lead to muscle loss, nutritional deficiencies, and other health issues.

Does BMI differ by age?

Yes, BMI interpretation can vary with age. For children and teens, BMI is age and sex-specific. For adults over 65, a slightly higher BMI may be protective.

Should I rely only on BMI?

No. Consider other factors like waist circumference, body fat percentage, blood pressure, and blood sugar levels for a complete health picture.

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Understanding your body is the first step toward better health. Use our free calculators and take control of your wellness journey.

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