BMI Calculator

Last updated: 2026-08-24

BMI Calculator — Calculate Body Mass Index.
Inputs
Result
Enter values and press Calculate

How to use it

  1. Measure your weight in kilogramos (ej: 70 kg)
  2. Measure your height in centímetros and converts a meters (ej: 175 cm = 1.75 m)
  3. Square the height to the square (1.75² = 3.0625)
  4. Divide the weight between the height to the square (70 ÷ 3.0625 = 22.8)
  5. Compare with ranges: <18.5 low weight, 18.5-25 standard, 25-30 sobrepeso, >30 obesidad

Common mistakes

  • ⚠️ Use height in cm without Convert a meters (gives IMC 10000× greater)
  • ⚠️ Not considering that IMC not distingue músculo of grasa (atletas salen as sobrepeso)
  • ⚠️ Apply ranges adultos a niños or adolescents (usan percentiles per edad)

Worked example

Calculate BMI for 75kg, 1.75m.

The IMC calculado indica the category of weight; a value between 18.5-25 is considered saludable to the majority of adultos.

Input guide

FieldTypical range
peso_kgPeso common: 45-120 kg
altura_cmAltura common: 140-200 cm
edadEdad typical: 18-80 years