A BMI between 18.5 and 24.9 is considered healthy for most adults. BMI below 18.5 is underweight, 25–29.9 is overweight, and 30 or above is classified as obese. Keep in mind that athletes may have a higher BMI due to muscle mass without being overweight.
BMI is a useful screening tool but has limitations. It doesn't distinguish between fat and muscle mass. Athletes can have high BMI while being very healthy, and older adults may have normal BMI but high body fat. It's best used alongside waist circumference and other health measures.
A BMI of 30.0 or higher is classified as obese: Class I (30–34.9), Class II (35–39.9), and Class III severe obesity (40+). If your BMI falls in this range, speaking with a healthcare professional is recommended.
Focus on a calorie deficit through a balanced diet and regular exercise. Aim for 150–300 minutes of moderate activity per week. Building consistent habits — tracking workouts, water intake, sleep, and nutrition — is key for long-term results. Brite app can help you stay on track with all of these habits in one place.
The standard BMI ranges are the same for men and women, but women naturally have more body fat than men at the same BMI. Some researchers suggest this should be accounted for in clinical assessment. Always interpret BMI alongside age, sex, and muscle mass.