BMI Calculator
Calculate Body Mass Index from weight and height. Get your category (underweight/normal/overweight/obese).
About this calculator
The BMI Calculator on NumberCals is a free, mobile-friendly tool for anyone needing to calculate body mass index from weight and height. get your category (underweight/normal/overweight/obese). Enter your values in the form below and the result is computed instantly — no sign-up, no installation, no waiting.
Formula used
BMI = weight(kg) / height(m)²
What you'll need
- Weight (kg) (e.g. 70)
- Height (cm) (e.g. 175)
What you'll get
- BMI
- Category
Formula
BMI = weight(kg) / height(m)²
Result
Frequently Asked Questions
Is BMI accurate for everyone? +
No. BMI doesn't distinguish muscle from fat, so athletes and very muscular people can be classed 'overweight' incorrectly. For body composition, use body fat % or waist-to-height ratio.
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