Anorexic BMI Calculator
Assess your body mass index and understand the health implications of being underweight with our comprehensive BMI calculator.
BMI Calculator
Calculating your BMI…
BMI Results
BMI Scale
(<18.5)
(18.5-24.9)
(25-29.9)
(>30)
Health Risk Assessment
Underweight Health Risks
Being underweight can lead to weakened immune system, osteoporosis, anemia, and fertility issues. It may also indicate malnutrition or an underlying health condition.
Normal Weight Benefits
Maintaining a normal BMI reduces the risk of chronic diseases and supports overall health and longevity. It’s associated with better energy levels and physical function.
Overweight Health Risks
Excess weight increases the risk of heart disease, type 2 diabetes, high blood pressure, certain cancers, and other health problems.
Frequently Asked Questions
BMI (Body Mass Index) is a measure of body fat based on height and weight. It’s calculated by dividing your weight in kilograms by your height in meters squared (BMI = kg/m²). While it’s a useful screening tool, it doesn’t directly measure body fat or health.
A BMI below 17.5 is often considered indicative of anorexia nervosa in adults. However, diagnosis of anorexia involves more than just BMI – it includes psychological factors, eating behaviors, and other physical symptoms. A BMI below 16 is considered severe underweight and requires immediate medical attention.
BMI doesn’t distinguish between muscle and fat mass, so athletes with high muscle mass may have high BMI despite being healthy. It also doesn’t account for fat distribution, age, sex, or ethnicity. For a more complete health assessment, BMI should be used alongside other measurements like waist circumference and body fat percentage.
Healthy weight gain involves eating nutrient-dense foods more frequently, focusing on protein, complex carbohydrates, and healthy fats. Strength training can help build muscle mass. It’s important to work with a healthcare provider or dietitian to develop a safe and effective weight gain plan, especially if you’re significantly underweight.
You should seek medical help if your BMI is below 17.5, especially if you’re experiencing symptoms like fatigue, hair loss, irregular periods (for women), or frequent illness. Also seek help if you’re losing weight unintentionally, have an unhealthy relationship with food, or are using extreme measures to control your weight.