How to Calculate Weight Accurately – Here is information on how to calculate body weight accurately, so watch this article to the end to find out more complete and clear information.

Having an ideal body weight seems to be a goal shared by both men and women. So it's no wonder that many people are competing to achieve their ideal body weight.

But, is the weight you want in accordance with the calculated ideal weight? There are times when a person craves a certain weight even though the figure is below normal.

Why Need To Have Ideal Body Weight

This is definitely not good for your health and should be avoided. Being too thin or too fat is not recommended. So, how do you calculate the ideal body weight? Let's find the answer below.

Why is it necessary to have an ideal body weight?

How important is your ideal weight? In fact, you may not realize that maintaining an ideal body weight is an effort that you can use to maintain your overall body health.

Not to mention, maintaining an ideal body weight is a way to prevent and inhibit the entry of various diseases.

Many dangerous diseases await you if you are overweight or underweight. Heart disease, high blood pressure, diabetes, cancer and even stroke are examples.

How to Calculate Ideal Body Weight

Everyone's ideal body weight is different. However, you should not compare your weight with the weight of a friend, relative or partner. Because the numbers will definitely be different.

It's actually quite simple to calculate the ideal body weight. You can measure it based on your height.

So, before trying to calculate your ideal weight, you should first measure your height.

How to Calculate Ideal Body Weight

Calculating a person's ideal weight is also different for babies, children, even men and women. For more details, please see the presentation below:

1. Calculate the ideal weight for babies 0-12 months

Don't you think that babies can be free to consume anything without looking at the numbers on the weight scales.

Due to the fact that babies aged 0-12 months also have their ideal weight limit. The method that you can use to calculate it is by using the following formula:

Ideal body weight for babies = { baby's age in months: 2 } + 4

For example, if your baby is 7 months old, the ideal weight is:

(7 : 2) + 4 = 7.5 so the weight of a 7 month old baby is 7.5 kg.

2. Calculating the Ideal Weight for Children 1-10 Years

After your child turns 1 year old, the way to calculate his ideal weight is already different from how it was when he was a baby. The formula is as follows:

Ideal body weight for children = 2n + 8

Where n is the child's age in years.

For example, your child is currently 7 years and 6 months old, so the calculation is as follows:

(2 × 7.5) + 8 = 23. So the ideal weight for a 7.5 year old child is 23 kg.

3. Using the BMI Formula

This time, the calculations are different for children one year and older. BMI and Brosca are the two most commonly used methods.

The BMI method uses the Body Mass Index, which is the ratio of height to body weight.

When you turn 20, you can start calculating your ideal weight using the BMI formula.

However, it turns out that using a BMI calculator to calculate the ideal body weight is a little misleading for athletes or athletes.

Using the BMI Formula

Since weight is derived from muscle mass, an athlete may appear overweight on a BMI calculator when he is not.


  1. A normal BMI ranges between 18.5 and 25.
  2. When your BMI is over 25, you should be aware of your higher risk of heart disease, cancer, diabetes and other diseases.
  3. If your BMI is less than 18, you should be aware of osteoporosis.
  4. If you fall into one of the two categories, have a BMI greater than 15 or less than 18, you should see a doctor.
  5. Later, you will be informed about how to improve and maintain a healthier lifestyle to achieve and maintain an ideal body weight.
  6. Furthermore, if your BMI is greater than 40, you must be very careful because the situation is already very dangerous.

Calculations Using the BMI formula will usually produce a number on a scale that can indicate your weight condition. you can use the following formula:

BMI = body weight (in kg) : height (in m)

For example, if you are 160 cm tall and weigh 50 kg, then the BMI value is: 50 : 1.6 = 31.25.

So, for a height of 160 cm and a weight of 50 kg, you are in the overweight group.


Normal BMI figures are between 18.5 – 25

Under the number 17, it means you are underweight or underweight

If it is above 25 then you are in the overweight category but still on a mild scale

Meanwhile, if you have reached 40, then you should be careful because you are already included in the dangerous overweight category.

4. With the Brosca Formula

The brosca formula was originally discovered by an expert named Pierre Paul Brosca. This formula is a way of calculating the ideal body weight that is most often used because it is considered relatively accurate. The formula used is slightly different between women and men.

For Men

The ideal body weight for men with the Brosca formula can be calculated as follows:

{height in cm – 100} – {height in cm-100} x 10%}.

For example, you are male and have a height of 160, so your ideal weight is:

{160-100}-{160-100} x 10% = 60-6 = 54

So your ideal weight is 54 kg.

For woman

Unlike the formula used for men, women can use the following formula:

{height in cm – 100} – {height in cm – 100} x 15%}

For example, you are female with a height of 160, then the ideal weight you should have is:

{160-100} – {160-100} x 15% = 51

So you are at the ideal body weight if you weigh 51 kg.

Often you make mistakes in calculating because you only count by height-100.

Maybe for you the results of this reduction have reached normal body weight. However, the actual result is not like that.

5. Calculate the ideal body weight for pregnant women

Apparently, calculating the ideal body weight in pregnant women also has a different way, you know. For pregnant women, the calculation has its own method, namely taking into account the length of gestation and the normal weight of the fetus in the womb.

Calculating the Ideal Body Weight for Pregnant Women

You can do the formula for the ideal body weight for pregnant women as follows:

Ideal body weight (based on the Brosca formula for pregnant women + {gestational age in weeks x 0.35}

For example, you are a pregnant woman whose womb has entered the 20th week of pregnancy.

The ideal body weight that you have calculated using the Brosca formula is 51 kg. then your weight in pregnancy at the age of 20 weeks is:

51 + {20 x 0.35} = 58

So the ideal weight that you should achieve when you are 20 weeks pregnant is 58 kg.

Steps to Get Ideal Body Weight

After finishing listening to how to calculate the ideal body weight above, the next is what steps must be taken to get the ideal body weight.

For those of you who want to have an ideal body weight either by gaining or losing weight but in a healthy and safe way.

It is recommended that you follow some of the guidelines below:

1. Select Food

The first start by consuming healthy foods, such as eating more fruits, vegetables and whole grains.

Meanwhile, to get protein intake, you are advised to consume fish, tofu, tempeh and dairy products and their processed products which are still considered low in fat.

You also need to limit consuming foods that contain too much unsaturated fat such as cheese, high-fat milk and processed meat.

Instead, replace your fatty foods with foods that contain more healthy fats such as nuts, fish and avocados.

2. Set Meal Portions

Just consuming healthy food is not enough. Because if you consume healthy food in too many portions.

This is also not recommended because the hope of getting the ideal body weight will be in vain. Consuming healthy food must also be balanced with the right portion of food.

Instead of getting enough nutrition, eating in excess will actually make you obese. So, you have to keep your portion sizes balanced.

3. Drink Water

Drinking plenty of water is also one way to get ideal body weight.

This should also be balanced by reducing excessive consumption of sweet drinks. Because by drinking more water, it will be able to make you feel full longer.

So that the desire to overeat or eat snacks will be slightly dampened.

Not only that, water is also closely related to fulfilling your daily body fluid needs to avoid dehydration, constipation and even kidney stones.

The recommended intake of water for you to consume every day is 8 glasses. However, if you are a person who likes to do sports or strenuous activities, you should increase your water consumption.

4. Sports

Routinely doing any type of exercise can also be a solution so that your body's fitness is maintained.

Even with you regularly doing sports activities, you can automatically reduce the risk of various types of diseases.

Not to mention the dream of being able to achieve the ideal body weight you will easily get. Exercises that you can practice to maintain an ideal body weight can be started with simple exercises.


Such as walking, swimming, cycling, jogging and even doing sports at the fitness center. Do regular exercise for at least 15-30 minutes every day.

Or if you don't have much free time, you can do sports at least 3 times a week.

By routinely doing the tips above, it seems that getting the ideal body weight is not just a dream for you.

But you still have to do the steps above routinely and with discipline so that the results you will get are also maximum.

Diet To Get Ideal Body Weight

Referring to how to calculate the ideal body weight above, going on a diet is indeed necessary in order to get the ideal body weight.

However, never go on an extreme diet because the impact will be very bad for your health.

The diet that you have to do is not a random diet. Here are some healthy diet methods that you can practice:

Limit Salt Consumption

Avoid extreme diets and you must switch to a diet that is safer for your body. Don't let the diet you do actually have an impact on the health of your body.

One diet that you can do is to limit salt consumption. Because without you knowing, consuming excessive salt will make your body have a little difficulty being able to process fat metabolism.

So at that time, because fat metabolism is not perfect, it will cause a pile of fat in your body.

Keeping Your Body Hydrated

Water is the source of life for humans. Because of how important the role of water is in the body, this will also affect the diet you are doing.

Keeping Your Body Hydrated

As a suggestion, you should always carry a supply of water wherever you go, to meet your daily water needs while avoiding a lack of body fluids.

Stay away from Unhealthy Lifestyles

Believe it or not, it turns out that an unhealthy lifestyle can also more or less affect the diet that you are doing. Therefore, you are advised to avoid an unhealthy lifestyle.

Examples such as smoking, drinking alcoholic beverages, and often staying up late are also unhealthy lifestyles. So it's best to adjust your sleep pattern and maintain your healthy food intake.

Avoid packaged or ready-to-eat foods

Why do packaged and ready-to-eat foods need to be avoided? Because these foods usually contain too much salt, sugar and refined carbohydrates.

Avoid packaged or ready-to-eat foods

So that the healthy diet that you live can give the results you want, then it's a good idea to avoid these packaged foods and fast food.

Active Move

Increasing movement also turns out to be able to help smooth the process of your diet. Because the more you move, the more calories your body can burn.

You can start by keeping busy cleaning the house. Or if you are a worker who doesn't have much free time.

You can replace office activities that originally used the elevator and can be replaced by climbing the stairs. This of course will support you to more quickly reach the ideal body weight.


That's a little information on how to accurately calculate body weight, which can be calculated using a simple formula.

However, for the record, you need to remember that not everyone can determine the ideal body weight using the method above.

As mentioned above, athletes and athletes have excess muscle mass and the results of calculating the ideal body weight will be slightly off the mark with this formula.

You can form an ideal body weight by adopting a healthy lifestyle and diet. And the most important thing to remember is that having an ideal body weight does not mean having a thin or slim body.

Thus the article on How to Calculate Weight Accurately and don't forget to keep visiting the Infokekinian website.

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