This site requires JAVASCRIPT support, currently you don't have.

Overweight (BMI) Calculator

Body Mass Index for Adults

Body Mass Index (BMI) provides the most useful population-level measure of overweight and obesity as it is the same for both sexes and for all ages of adults. However, it should be considered a rough guide because it may not correspond to the same degree of fatness in different individuals. Our Overweight Calculator provides simple solution to calculate it.

What are obesity and overweight?

Overweight and obesity are defined as abnormal or excessive fat accumulation that may impair health.

Body mass index (BMI) is a simple index of weight-for-height that is commonly used to classify overweight and obesity in adults. It is defined as a person's weight in kilograms divided by the square of his height in meters (kg/m2).

What does Adult Overweight Calculator do?

Overweight calculator, calculate the body mass index (BMI) and shows your category based on that. This calculator shouldn't be used by pregnant womans, body builders, elders and children.

What causes obesity and overweight?

The fundamental cause of obesity and overweight is an energy imbalance between calories consumed and calories expended. Globally, there has been:

an increased intake of energy-dense foods that are high in fat and sugars; and

an increase in physical inactivity due to the increasingly sedentary nature of many forms of work, changing modes of transportation, and increasing urbanization.

Changes in dietary and physical activity patterns are often the result of environmental and societal changes associated with development and lack of supportive policies in sectors such as health, agriculture, transport, urban planning, environment, food processing, distribution, marketing, and education.

Health Consequences

Raised BMI is a major risk factor for noncommunicable diseases such as:

cardiovascular diseases (mainly heart disease and stroke), which were the leading cause of death in 2012;

diabetes;

musculoskeletal disorders (especially osteoarthritis – a highly disabling degenerative disease of the joints); some cancers (including endometrial, breast, ovarian, prostate, liver, gallbladder, kidney, and colon).

The risk for these noncommunicable diseases increases, with increases in BMI.

Childhood obesity is associated with a higher chance of obesity, premature death and disability in adulthood. But in addition to increased future risks, obese children experience breathing difficulties, increased risk of fractures, hypertension, early markers of cardiovascular disease, insulin resistance and psychological effects.

How can overweight and obesity be reduced?

Overweight and obesity, as well as their related noncommunicable diseases, are largely preventable. Supportive environments and communities are fundamental in shaping people’s choices, by making the choice of healthier foods and regular physical activity the easiest choice (the choice that is the most accessible, available and affordable), and therefore preventing overweight and obesity.

At the individual level, people can:

limit energy intake from total fats and sugars;

increase consumption of fruit and vegetables, as well as legumes, whole grains and nuts; and

engage in regular physical activity (60 minutes a day for children and 150 minutes spread through the week for adults).

Individual responsibility can only have its full effect where people have access to a healthy lifestyle. Therefore, at the societal level it is important to support individuals in following the recommendations above, through sustained implementation of evidence based and population based policies that make regular physical activity and healthier dietary choices available, affordable and easily accessible to everyone, particularly to the poorest individuals. An example of such a policy is a tax on sugar sweetened beverages.

The food industry can play a significant role in promoting healthy diets by:

reducing the fat, sugar and salt content of processed foods;

ensuring that healthy and nutritious choices are available and affordable to all consumers;

restricting marketing of foods high in sugars, salt and fats, especially those foods aimed at children and teenagers; and

ensuring the availability of healthy food choices and supporting regular physical activity practice in the workplace.

Examples

BMIWeight Status
Below 18.5Underweight
18.5 ~ 24.9Healthy
25.0 ~ 29.9Overweight
30.0 and AboveObese

Sources

World Health OrganizationObesity and OverweightDiabetesCAHow to Calculate BMICDCAdult BMI