EMI Loan Calculator
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Calculate your monthly EMI, total interest, and total payment for any loan with our advanced amortization-based calculator.
BMI Calculator
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Calculate your Body Mass Index instantly with metric or imperial units. Get your weight category and healthy weight range.
BMI Calculator
Your BMI
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About This Tool
What is BMI?
Body Mass Index (BMI) is a simple ratio of weight to height squared used to categorize adults into weight ranges. It’s a quick screening tool — not a diagnostic — adopted by the World Health Organization.
BMI Categories (WHO Standard)
- Below 18.5 — Underweight
- 18.5 to 24.9 — Normal weight
- 25 to 29.9 — Overweight
- 30 and above — Obese
Limitations of BMI
BMI doesn’t distinguish between muscle and fat, so very athletic people may show a high BMI without being overfat. It’s also less reliable for the very young, elderly, or pregnant. Use it as a starting point, not a final answer.
Frequently Asked Questions
Is BMI accurate for everyone?
BMI is a useful population-level screening tool, but it has known limitations. Athletes with high muscle mass may register as overweight despite low body fat. Older adults may have a 'normal' BMI but sarcopenia. Always combine BMI with other metrics like waist circumference or body-fat percentage for a fuller picture.
Should I worry if my BMI is just outside the normal range?
BMI is a continuum, not a hard line. Being 25.2 vs 24.9 doesn't meaningfully change your health risk. Trends over time, lifestyle, and other lab results matter much more than the precise number.
How do I lower my BMI healthily?
Sustainable weight loss combines a modest calorie deficit (typically 300u2013500 kcal/day below maintenance), regular resistance and cardiovascular exercise, adequate protein, sleep, and stress management. Aim for 0.5u20131 kg per week.