To calculate your Body Mass Index (BMI), just fill in your weight, age and height below — the calculator instantly computes your BMI, tells you which category you fall into, and gives you personalized nutrition and training advice, including calorie counting and how many monthly calories you need.
Professional advice
This calculator gives a general estimate and does not replace a consultation with a doctor or a personal trainer.
Start working with a specialist
Our VIP trainers can help you build a personalized plan based on your goals and body type.
What is BMI and how is it calculated?
Body Mass Index (BMI) is an internationally recognized measure that uses the ratio of weight to height to determine whether body mass falls within a healthy range. BMI is calculated with the formula: weight in kilograms divided by height in meters squared. The resulting value places you into a category — from underweight to obese — which helps trainers and dietitians plan the right training and nutrition program.
Calorie counting and a monthly calorie plan
After calculating your BMI, the calculator also estimates your daily and monthly calorie targets — how many calories you need to maintain, lose, or gain weight, based on your activity level and goal. Accurate calorie counting is the foundation of an effective nutrition and training plan — especially important for anyone working systematically on weight control with a personal trainer.
