BMI calculator with steps — compute BMI, interpret categories, and reverse-calc

Step-by-step examples: compute BMI from weight/height, interpret category, and find target weight for desired BMI.

Tool

Use the main BMI calculator for interactive calculations: Open BMI calculator.

Examples

  1. Compute BMI
    Problem: weight = 70 kg, height = 1.75 m
    1. BMI = weight / height^2 = 70 / 1.75^2 = 70 / 3.0625 = 22.86
    2. Answer: 22.9 (Normal)
  2. Interpret category
    Problem: BMI = 28.5 → Category: Overweight
    1. Use BMI ranges to map numeric BMI to category.
  3. Target weight for desired BMI
    Problem: desired BMI = 24, height = 1.75 m
    1. Weight = BMI * height^2 = 24 * 3.0625 = 73.5 kg
    2. Answer: ~73.5 kg

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