How to Calculate BMI
Calculate Body Mass Index (BMI) = weight(kg) / (height(m))^2. Process: choose metric/imperial, convert units if needed, compute BMI, map to category. Example: 70kg & 175cm → BMI 22.9 (Normal).
How to Calculate BMI
What: Calculate your BMI (Body Mass Index) to assess if your weight is healthy. Usage: Enter your weight and height, click calculate. Scenarios: health checks, fitness planning, and weight management.
BMI Categories
Frequently asked questions
What is the BMI formula?
Metric BMI = weight(kg) / height(m)². Imperial uses BMI = 703 × weight(lb) / height(in)².
What do the BMI categories mean?
Common adult cutoffs: underweight <18.5, normal 18.5–24.9, overweight 25–29.9, obese ≥30. Categories are screening aids, not diagnoses.
Is BMI accurate for athletes?
BMI does not distinguish muscle from fat. Athletes may have a high BMI with low body fat — ask a clinician for individual assessment.
Important notice
This BMI calculator is for educational screening only and is not medical advice. It does not diagnose disease or replace care from a qualified health professional.
References: WHO adult BMI classification guidance; standard metric and imperial BMI formulas used in clinical screening tools.