BMI Calculator for Singaporean and Asian

Your BMI is

What is body mass index (BMI)?

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

The World Health Organization (WHO) defines overweight as a BMI of ≥ 25 and a BMI of ≥ 30 for obesity. However, because at any given BMI, Asians, including Singaporeans, generally have a higher percentage of body fat than do Caucasians, the BMI cut- off levels for Singaporeans have been revised such that a BMI 23 kg/m2 or higher marks a moderate increase in risk while a BMI 27.5 kg/m2 or more represents high risk for diabetes and cardiovascular diseases.

BMI Categories (WHO):

  • Underweight = <18.5
  • Normal weight = 18.5–24.9
  • Overweight = 25–29.9
  • Overweight = 25–29.9
  • Obesity = BMI of 30 or greater

BMI Categories (Singapore):

BMI (kg/m2) for adults Health risk
27.5 and above High Risk: Your weight is further above healthy range. It increases the risk for developing many chronic diseases such as heart disease and type 2 diabetes, and decreases overall quality of life. Talk to your healthcare provider about your ideal body weight and how to make healthy lifestyle changes.
23 – 27.4 Moderate Risk: Your risk for developing type 2 diabetes and other chronic diseases are higher. Talk to your healthcare provider about your ideal body weight and how to make healthy lifestyle changes.
18.5 – 22.9 Low risk: Continue exercising and eating healthfully.
Below 18.5 Risk of nutritional deficiency diseases and osteoporosis.

*BMI may not apply to athletes who tend to have large muscle mass, elderly people, pregnant women and children.

Optimal Waist Circumference for Asians

Sometimes even when your BMI is within healthy range, having too much fat around the abdomen (apple-shaped body) will still put you at risk for heart disease and diabetes. Below are the target goals for waist circumference measurements.

Male Female
Equals or less than 90cm (35.5 in) Equals or less than 80cm (31.5 in)