How to Calculate BMI

÷ SmartCalc 💪 Health Guide Formula, healthy ranges and what your number means — 9 slides SmartCalc · smart-calculator.in Open BMI Calc →

Body Mass Index

÷ SmartCalc 2 / 9 What is BMI? A number from height and weight used as a global health screening tool since the 1830s. 🌍 Global use WHO Standard Free To calc Swipe for formula → Calculate

The BMI Formula

÷ SmartCalc 3 / 9 Formula Metric (kg and cm) BMI = Weight(kg) ÷ Height(m)² 70kg ÷ (1.70)² = 24.2 Imperial (lb and inches) BMI = [Weight(lb) ÷ Height(in)²] × 703 154lb ÷ (67)² × 703 = 24.1 Step by step → Try It

Step-by-Step

÷ SmartCalc 4 / 9 Example Height 170cm · Weight 70kg 1. Convert: 170cm = 1.70m 2. Square: 1.70 × 1.70 = 2.89 3. Divide: 70 ÷ 2.89 BMI = 24.2 — Normal Weight ✓ BMI ranges → My BMI

BMI Ranges

÷ SmartCalc 5 / 9 WHO Categories Below 18.5 Underweight 18.5 to 24.9 Normal Weight 25.0 to 29.9 Overweight 30.0 to 34.9 Obese Class I 35 and above Obese Class II+ India specific → Check Yours

BMI for South Asians

÷ SmartCalc 6 / 9 🇮🇳 India Specific WHO recommends lower thresholds for Indian and South Asian populations. 18.5 to 22.9 Normal (India) 23.0 to 24.9 Overweight (India) 25 and above Obese (India) Limitations → Calculate BMI

BMI Does Not Tell Everything

÷ SmartCalc 7 / 9 Limitations 💪 Muscle mass: Athletes may show high BMI despite low body fat 👴 Age: Older adults carry more fat at the same BMI ⚧️ Sex: Women naturally have higher body fat at same BMI How to improve → Try BMI

Achieve Healthy BMI

÷ SmartCalc 8 / 9 Tips 🥗 Balanced nutrition — whole foods, lean protein, less processed food 🚶 150 min moderate exercise per week — WHO recommendation 😴 7 to 9 hours sleep — poor sleep causes weight gain Calculate your BMI → Get My BMI

Calculate Your BMI Now

÷ SmartCalc 9 / 9 ⚡ Free Tool Free, instant, metric and imperial. No signup. No data stored. Free · Instant · Private 💪 Open BMI Calculator →