Healthy Weight Calculator

Image of consultant bariatric surgeon, Mr Rishi Singhal

Medically reviewed by Prof Rishi Singhal MBBS, MRCS, FRCS, MD

Determining one’s ideal body weight is a common goal for many individuals who are looking to maintain a healthy lifestyle. The Healthy Weight Calculator based on your BMI offers a simple and efficient way to calculate the ideal body weight range based on height and gender. This tool provides users with valuable information that can assist them in setting realistic weight loss or maintenance goals.

Body mass index (BMI) is a widely used tool to assess an individual’s weight in relation to their height. It provides a simple calculation that can help determine if someone falls within a healthy weight range. The Centers for Disease Control and Prevention (CDC) uses BMI and waist circumference as screening tools to identify potential health risks associated with being underweight, overweight, or obese. the CDC comments that BMI does not assess an individual’s body composition or their health. 

For example, a BMI of less than 18.5 suggests that someone may be underweight and could be at risk for nutritional deficiencies and other health issues. On the other hand, a BMI between 18.5 and 24.9 is considered to be within a healthy range. However, a BMI of 25-29.9 may indicate that someone is overweight, which can also lead to various health conditions such as heart disease, diabetes, and high blood pressure. Individuals need to monitor their BMI regularly and make lifestyle changes such as regular physical activity and a balanced diet to maintain a healthy weight and reduce their risk of developing chronic diseases associated with obesity. If you are worried about your BMI, you can reach out to one of our health professionals. A BMI calculator will be inaccurate for pregnant women, and won’t give you an informative weight category.

Find Your Ideal Weight

Enter your height and weight details below to check your healthy weight range. Please note: A height and weight must be entered to complete the calculation.

IBW Calculator


The Devine method, was published in 1974 in order to aid in the dosing of gentamicin. For men, IBW = 50.0 + 2.3 × (ht – 60 in); whereas for women, IBW = 45.5 + 2.3 × (ht – 60 in).

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