Calculadora de 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.

¿Qué es el IMC y cómo se calcula?

El Índice de Masa Corporal se calcula dividiendo el peso en kilogramos por el cuadrado de la estatura en metros: IMC = kg ÷ m². La OMS define cuatro categorías: Bajo peso (menos de 18,5), Normal (18,5–24,9), Sobrepeso (25–29,9) y Obesidad (30 o más). La fórmula fue desarrollada por el matemático belga Adolphe Quetelet en 1832.

Por qué el IMC solo no es suficiente

El IMC no distingue entre masa grasa y masa muscular. Para una evaluación completa se combina con el perímetro de cintura (riesgo aumentado sobre 88 cm en mujeres y 102 cm en hombres). Nuestra Calculadora de Calorías complementa perfectamente su resultado de IMC.