Calcular IMC

The Body Mass Index (BMI) is one of the most widely used screening tools in modern preventive medicine. By dividing your weight in kilograms by the square of your height in meters, it produces a single number that broadly categorises your weight status — whether underweight, healthy, overweight or obese. While BMI is not a perfect diagnostic tool and does not account for muscle mass or body fat distribution, it remains a valuable first checkpoint endorsed by the World Health Organization and the NHS alike.

Understanding your BMI is most meaningful when combined with other health metrics. For example, after you calculate your BMI here, visit our Calorie Calculator to discover how many calories your body genuinely needs each day based on your weight, age and activity level. The two tools together give you a far more actionable picture of your health than either can alone.

It is also worth noting that BMI should always be interpreted alongside lifestyle factors. Our Daily Water Intake Calculator can help you determine the optimal hydration level for your body weight — a factor that directly influences both metabolism and weight management. Small, consistent changes informed by data are the cornerstone of lasting well-being.

O que é o IMC e como é calculado?

O Índice de Massa Corporal calcula-se dividindo o peso em quilogramas pelo quadrado da altura em metros: IMC = kg ÷ m². A OMS define quatro categorias: Abaixo do peso (menos de 18,5), Normal (18,5–24,9), Sobrepeso (25–29,9) e Obesidade (30 ou mais).

Por que o IMC sozinho não é suficiente

O IMC não distingue entre massa gorda e massa muscular. Para uma avaliação completa, combina-se com a circunferência da cintura (risco acima de 88 cm em mulheres e 102 cm em homens). A nossa Calculadora de Calorias e a Calculadora de Hidratação complementam o resultado.