HOW TO CALCULATE YOUR IDEAL WEIGHT: WHAT DO HEIGHT, AGE AND WAIST SIZE TELL US?

Ideal body weight is not just a matter of appearance. It can also be one of the indicators considered when assessing overall health. However, the number on the scale does not tell the whole story, as body composition, fat distribution, age and lifestyle habits also play important roles.

Body Mass Index (BMI) is one of the most widely used indicators for assessing body weight in relation to height. It is calculated by dividing weight in kilograms by height in metres squared.

For adults, a BMI below 18.5 generally indicates underweight, while values between 25 and 29.9 indicate overweight. A BMI of 30 or higher falls within the obesity range.

However, BMI does not distinguish between muscle mass and body fat, nor does it account for all individual characteristics. This is why other methods, including the Creff formula, are sometimes used to estimate an individual's ideal body weight based on height, age and an estimated body type.

It is important to note that the Creff formula has not been scientifically established as the most accurate method for determining ideal weight. Its results should be treated as a rough guide rather than a definitive assessment of health.

THREE BODY TYPES AND HOW TO CALCULATE YOUR ESTIMATED IDEAL WEIGHT

The Creff formula uses three body-type categories, with different adjustment factors for each.

AVERAGE BODY TYPE

Formula: ((height in centimetres − 100) + (age / 10)) × 0.9

For a person who is 165 centimetres tall and 30 years old:

((165 − 100) + (30 / 10)) × 0.9 = 61.2 kilograms

LARGER BODY FRAME

Formula: ((height in centimetres − 100) + (age / 10)) × 0.9 × 1.1

For a person who is 165 centimetres tall and 30 years old, the result is 67.32 kilograms.

SLIMMER BODY FRAME

Formula: ((height in centimetres − 100) + (age / 10)) × 0.9 × 0.9

For a person who is 165 centimetres tall and 30 years old, the result is 55.08 kilograms.

These figures are mathematical results obtained using the formula. They do not mean that the calculated weight is necessarily ideal or appropriate for every individual. A healthy weight range also depends on factors such as overall health, muscle mass and lifestyle habits.

WAIST CIRCUMFERENCE: AN IMPORTANT INDICATOR OF HEALTH

In addition to body weight, waist circumference can provide useful information about the amount of fat stored around the abdomen.

One simple guideline is the waist-to-height ratio. A waist circumference measuring less than half a person's height is commonly used as an indicator of a lower risk associated with abdominal obesity. However, this measurement alone cannot provide a complete assessment of health.

Another useful measure is the waist-to-hip ratio. To calculate it, divide your waist circumference by your hip circumference.

Measure your waist midway between the lowest rib and the top of the hip bone. Measure your hips around their widest point.

According to the World Health Organization (WHO), a waist-to-hip ratio above 0.90 for men and 0.85 for women indicates an increased health risk associated with abdominal fat distribution.

These measurements can help identify potential health risks, but they should be interpreted alongside other indicators and individual health factors.

HEALTHY HABITS MATTER MORE THAN THE NUMBER ON THE SCALE

Maintaining a healthy body weight involves a balanced diet, regular physical activity, sufficient sleep and other habits that support overall well-being.

Rather than relying on a single formula or a specific number on the scale, it is important to consider several indicators and take individual needs into account.

If you are concerned about sudden changes in body weight or an increase in waist circumference, consulting a healthcare professional can help you assess potential risks and identify appropriate steps to protect your health.