BMI Calculator
Understanding BMI
Body Mass Index (BMI) is a simple calculation using a person's height and weight. The formula is BMI = kg/m² where kg is a person's weight in kilograms and m² is their height in meters squared.
BMI is an inexpensive and easy screening method for weight category—underweight, healthy weight, overweight, and obesity. It is important to understand that BMI is not a diagnostic tool but rather a screening method.
BMI Categories:
- Underweight: BMI less than 18.5
- Normal weight: BMI 18.5 – 24.9
- Overweight: BMI 25 – 29.9
- Obesity: BMI 30 or greater
Risks Associated with Being Overweight:
Being overweight increases the risk of several serious diseases and health conditions, including:
- High blood pressure
- Higher levels of LDL cholesterol ("bad cholesterol"), lower levels of HDL cholesterol ("good cholesterol"), and high levels of triglycerides
- Type II diabetes
- Coronary heart disease
- Stroke
- Gallbladder disease
- Osteoarthritis
- Sleep apnea and breathing problems
- Certain cancers (endometrial, breast, colon, kidney, gallbladder, liver)
- Low quality of life
- Mental illnesses such as clinical depression, anxiety, and others
- Body pains and difficulty with certain physical functions
- Increased risk of mortality compared to those with a healthy BMI
It is generally recommended to maintain a BMI below 25 kg/m², but it is important to consult with a healthcare provider to determine the best weight management plan.
Risks Associated with Being Underweight:
Being underweight can also pose health risks, including:
- Malnutrition, vitamin deficiencies, anemia
- Osteoporosis
- Decreased immune function
- Growth and development issues in children and teenagers
- Reproductive issues for women due to hormonal imbalances
- Potential complications as a result of surgery
- Increased risk of mortality compared to those with a healthy BMI
Being underweight can sometimes indicate underlying conditions such as anorexia nervosa. It's important to consult a healthcare provider if there are concerns about being underweight.
Limitations of BMI:
Although BMI is a widely used indicator of healthy body weight, it has limitations. BMI does not account for differences in muscle mass, bone density, and fat distribution. For example:
- Older adults may have more body fat than younger adults with the same BMI
- Women typically have more body fat than men for an equivalent BMI
- Muscular individuals and athletes may have higher BMIs due to muscle mass
BMI should be considered along with other measurements and factors when assessing a person's overall health.
Disclaimer: This BMI calculator is not a substitute for professional medical advice, diagnosis, or treatment. Always consult with a healthcare provider for advice about your health and wellness.