Understand your body with numbers. Free, science-based health calculators updated for Indian body composition norms.
BMI, body fat percentage, calorie intake, hydration — each tells you something different. Using them together gives a much more complete picture than any one metric alone.
BMI is a quick screening tool that uses only weight and height. A muscular person and someone with high body fat can have identical BMIs but very different health profiles. Body fat percentage directly measures what matters for health risk — the proportion of fat versus lean mass. Use BMI for a quick check; use the body fat calculator for a more accurate assessment.
Your Total Daily Energy Expenditure (TDEE) is your true maintenance calorie level after accounting for activity. Eat 500 calories below TDEE to lose roughly 0.5kg/week; eat 500 above to gain. This is more reliable than any diet program that doesn't start with your individual TDEE.
South Asians develop weight-related health risks at lower BMI values than Western populations. The WHO has recommended slightly lower BMI thresholds for Indians: Normal weight is 18.5–22.9 (vs 18.5–24.9 globally), Overweight is 23–24.9, and Obese is 25+ — lower than the global 30+ threshold. Our BMI calculator uses these India-specific ranges.
Source: Ministry of Health & Family Welfare, India · World Health Organization