Free BMI & Calorie Calculator. Calculate Body Mass Index (BMI), daily maintenance calories (TDEE), and weight loss/gain targets. Supports metric and imperial units. | No signup · Data never leaves your device
Zero dependency · Works offlineUnderweight<18.5Normal18.5-24.9Overweight25-29.9Obese≥30
BMI = weight(kg)/height(m)², used to assess weight status. TDEE (Total Daily Energy Expenditure) is the calories needed to maintain current weight, calculated from BMR and activity level. Weight loss: reduce 500 kcal/day (≈0.5kg/week). Weight gain: add 500 kcal/day.