BMI Calculator Body Mass Index

What is BMI?

BMI, or body mass index, serves as a widely utilised method for assessing an individual’s body weight relative to their height. It is recognized as a straightforward and rapid means of categorising individuals into various weight status groups. Healthcare professionals and researchers commonly employ BMI to classify potential weight-related health risks.

Using a BMI calculator helps grasp a patient’s health status and risks. BMI is a measurement tool, not a diagnostic one, neglecting body fat percentage. It considers height and weight to calculate. BMI identifies underweight, normal weight, overweight, or obese categories.

What are the BMI weight categories?

BMI weight classifications are segmented into four categories: underweight (below 18.5), healthy weight (18.5-24.9), overweight (24.9-29.9), and obesity (30 and above). Knowing your weight category is crucial as it aids both you and your healthcare provider in assessing health risks.

Elevated BMI levels heighten the likelihood of developing severe health issues like heart disease and Type 2 diabetes. Research indicates a direct correlation between increasing BMI and a rise in associated health complications.

Note- The weight classifications adhere to the guidelines provided by the Centers for Disease Control and Prevention (CDC).

Calculate your BMI

BMI, an abbreviation for Body Mass Index, is determined through a mathematical equation or by referring to tables correlating weight in pounds with height in inches. Convenient online tools are available to aid in BMI calculations.

The formula for BMI computation is:

BMI is calculated by dividing weight in kilograms by height in square metres.

A BMI falling between 18.5 and 24.9 indicates a normal range, indicating that the individual’s weight aligns with their height. BMI charts classify individuals as underweight, normal, overweight, or obese based on their BMI score.

BMI Chart for adults

Below is a BMI calculator designed for adults. Based on this tool, doctors evaluate an individual’s weight status using the following table:

BMI Weight Status

BMI	Weight Status
Below 18.5	Underweight
18.5-24.9	Normal weight
24.9- 29.9	Overweight
30.0 and above	Obesity

BMI Chart for Children

Below is a BMI chart designed for children. Using this chart, doctors evaluate an individual’s weight status according to the table provided:

BMI Weight Status

BMI	Weight Status
5th percentile	Underweight
5th percentile to 85th percentile	Normal weight
85th percentile- 95th percentile	Overweight
95th percentile and above	Obesity

What health hazards are associated with excess weight?

Being overweight impacts various bodily systems and increases susceptibility to chronic diseases and disorders. It poses numerous health risks:

• Increased risk of coronary artery disease.
• Higher likelihood of experiencing a heart attack.
• Elevated levels of LDL cholesterol and triglycerides.
• Reduced levels of HDL cholesterol.
• Increased chance of hypertension, or elevated blood pressure.
• Higher chances of experiencing a stroke.
• Increased risk of type 2 diabetes.
• Greater susceptibility to gallbladder disease and gallstones.
• Heightened vulnerability to certain cancers, including prostate, colon, and breast cancer.
• Higher incidence of fatty liver disease (non-alcoholic fatty liver disease).
• Greater likelihood of developing sleep apnea and other sleep-related breathing disorders.
• Increased risk of osteoarthritis due to excess stress on weight-bearing joints.
• Greater likelihood of experiencing gastroesophageal reflux disease (GERD).
• Elevated risk of kidney disease and kidney stones.
• Higher chances of developing metabolic syndrome.
• Increased risk of infertility and menstrual irregularities in women.
• Greater susceptibility to depression and other mental health issues.
• Elevated risk of developing respiratory problems such as asthma.
• Increased risk of problems during pregnancy and labour.
• Reduced life expectancy and overall quality of life.

What are the dangers of being below a healthy weight?

Maintaining a healthy weight is crucial; however, being underweight carries its own set of health risks and complications, such as:

• Weakened immune system, leading to increased susceptibility to infections.
• Higher risk of osteoporosis and bone fractures due to decreased bone density.
• Impaired wound healing and recovery from illnesses.
• Menstrual irregularities or loss of menstrual periods (amenorrhea) in females.
• Reduced fertility and reproductive health issues.
• Decreased muscle mass and strength, leading to weakness and fatigue.
• Poorer exercise performance and endurance.
• Slower metabolism, making it difficult to maintain or gain weight.
• Increased risk of developing eating disorders such as anorexia nervosa.
• Cognitive impairments and difficulties concentrating.
• Decreased libido and sexual dysfunction.
• Chronic fatigue and lack of energy.
• Nutritional inadequacies, such as consuming inadequate amounts of vital minerals and vitamins.
• Delayed wound healing and higher risk of complications after surgery.
• Poorer overall physical health and lower resilience to stress.
• Impaired growth and development, particularly in children and adolescents.
• Hair loss or thinning.
• Dry, pale, or dull skin due to lack of essential nutrients.
• Higher risk of developing hypothermia or feeling excessively cold.
• Reduced life expectancy and increased mortality risk compared to individuals with a healthy weight.