Calcular IMC

A calculadora de IMC (Índice de Massa Corporal) calcula instantaneamente sua categoria de peso com base na sua altura e peso. O resultado indica se você está abaixo do peso, com peso normal, acima do peso ou obeso — segundo os critérios da Organização Mundial da Saúde. Embora o IMC não distinga massa muscular de gordura, continua sendo uma ferramenta de triagem amplamente reconhecida e prática.

Combine seu resultado de IMC com nossa Calculadora de Calorias para ter uma visão completa das suas necessidades diárias de energia. Use a Calculadora de Ingestão de Água para saber quanta água seu corpo precisa por dia de acordo com seu peso.

What is BMI and how is it calculated?

Body Mass Index is calculated by dividing your weight in kilograms by the square of your height in metres: BMI = kg ÷ m². The WHO defines four categories: Underweight (below 18.5), Normal (18.5–24.9), Overweight (25–29.9) and Obese (30 and above). The formula was developed by Belgian mathematician Adolphe Quetelet in 1832 and remains the most widely used population-level screening tool endorsed by the World Health Organization, the NHS and the CDC. For children and teenagers, age- and sex-specific percentile charts are used instead of adult thresholds.

Why BMI alone is not enough

BMI does not distinguish between fat mass and lean muscle mass, which means a muscular athlete may register as "overweight" while a sedentary person with excess visceral fat may score in the "normal" range. For a more complete picture, doctors combine BMI with waist circumference (risk increases above 88 cm for women and 102 cm for men), body fat percentage, and blood markers such as fasting glucose and cholesterol. Use our Calorie Calculator alongside your BMI result to understand your true energy needs, and our Water Intake Calculator to support your metabolism effectively.