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Adult BMI Calculator

Calculate Your BMI — Track Your Progress

Get instant body mass index results, monitor your fitness journey, and discover gyms near you.

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Your BMI
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ℹ️ About BMI BMI is a screening tool, not a medical diagnosis. It doesn't directly measure body fat and may be less accurate for muscular people, pregnant people, older adults, and some populations. If you have concerns about your health or weight, talk to a qualified health professional for personalized guidance. This tool is here to help you track and understand — not to replace professional advice! 💬
🔒 Your data is safe & private
All entries are saved only on your device (localStorage). We never store or have access to your data. Your privacy is guaranteed. ✓

⚠️ Important: If you clear your browser data or reinstall, your entries will be lost. Download your progress regularly to keep a backup!
📸 Track Your Progress

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Progress Timeline

Backup reminder: Download your progress as PNG or PDF to keep a safe copy. These files are stored only on your device.

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CategoryBMI RangeRisk Level
UnderweightBelow 18.5Low risk
Normal weight18.5 – 24.9Low risk
Overweight25.0 – 29.9Increased risk
Obese30.0+High risk

Gyms Near You

Browse our directory of gyms, studios, and training facilities.

BMI Standards by Country

Some countries apply adjusted BMI thresholds. Select a country to see its specific classification table and local gyms.

Australia Brazil United States United Kingdom