Ideal Weight Calculator

There is a popular misconception presented in the media of an “ideal body weight” which is mainly based on appearance. Trends in body shape and weight are promoted by social media accounts and the media on tv and in magazines.  The “perfect” look is often encouraged by using celebrities with a visual appeal that inspires their followers.


Our Ideal weight calculator is not based on looks or trends. It is based on formulas that were created by the medical profession to estimate dosages for medicines. Today the sports industry uses the IBW to classify people.

Calculate Your Ideal Weight
Age (in years):
Gender: Male   Female
Height: feet inches

Based on the Devine formula,
your ideal weight is kgs

Based on the Hamwi formula,
your ideal weight is kgs

How to Use The Ideal Weight Calculator

The ideal weight calculator calculates ideal body weight (IBW) ranges. It bases the calculation on your height, gender and age.


The IBW is a much sought-after figure that experts have been working on for many years. There are several different formulas that have been designed to calculate IBW and our calculator uses 2 of the most popular: Devine and Hamwi.


The formulas to calculate IBW use the same format of a base weight for a given height of 5 ft with a set increment added per inch over 5 ft. The two scientists created formulas based on their own findings. Both the Hamwi formula and the Devine formula were created originally to determine medicine dosage but the Devine Formula is has become a universal measure of IBW across the world.


  1. J. Hamwi Formula (1964)

Male: 48 kg + 2.7 kg per inch over 5ft

Female: 45.5 kg + 2.2 kg per inch over 5ft


  1. J. Devine Formula (1974)

Male: 50 kg + 2.3 kg per inch over 5ft

Female: 45.5 kg + 2.3 kg per inch over 5ft


You can do this calculation easily by inputting your age in years, choosing your gender and inputting your height in feet and inches (imperial measurement). You will be given a calculation for both formulas for you to compare.


How Accurate is the Ideal Weight Calculator?

Calculating your ideal weight measurement is not a perfect science. It does not include factors like body fat percentages and muscle mass. Just like BMI (Body Mass Index) figures it is possible for healthy athletes and bodybuilders to be classed as overweight compared to their IBW because they have a larger proportion of muscle mass which is denser than fat. It is possible to be above or below your IBW and still be relatively healthy.


Whilst we cannot give an exact accurate measure for how much each person should weigh to be healthy it is possible to use guidance based on medical studies that give a generalised idea of the risks of being above or below an IBW. As with all of our calculators the results should be considered as a starting point to set yourself achievable goals to be healthy.


What are the Limitations?

As with many calculations regarding weight, the IBW is not perfect. It is designed to give a figure that applies to a wide range of people and it is not individualised to take account of all the factors that might be applicable. There is no consideration for any disabilities or different body shapes. It does not take into account the level of activity undertaken or the individual’s body composition and muscle-to-fat ratio.


IBW is not a suitable calculation for people who are at the extreme end of fitness. Sportsmen and bodybuilders with a large body frame and a high proportion of lean muscle will always appear to be above their IBW when they are in fact very healthy and do not need to lose weight.

Pregnant women should not compare their current weight to their IBW as pregnancy means they will carry more weight naturally. Children should also not be measured against an IBW as their bodies have not yet fully developed.


If you reach a weight that is within the normal range for BMI then you should not feel the need to continue to restrict your calories to lose more weight to achieve a specific number. The IBW really is a general guideline that can help to give you a goal to aim for when considering a meal plan and should not be used as a strict weight target.


What is My Ideal Weight?

Calculating a figure for your IBW can raise lots of issues. It is hard to see one perfect number that characterizes perfection. Whilst it is good to have a goal to aim for it is important to consider your own personal views on how you feel and look at different weights.


As you embark on your weight loss journey it is important to constantly evaluate the changes that you see and feel in your body. The most important thing is to reach a weight inside your healthy BMI range that allows you to feel good and in optimum health. It is all about getting a balance between science and your own personal instincts for what is achievable. Using the IBW as a goal to put you within a healthy weight range can ensure that you lower your risks of illness and disease and help you to take better care of yourself.


Consider using Dubai meal plans or a home-delivered cook box to help you to discover a healthy way of eating and guarantee that you are getting wholesome, nutritious food that will help you to reach your goals.