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To live a healthy life, there is a minimum requirement of energy to perform all the key activities. This energy requirement has to be balanced. Estimated Energy Requirement (EER) defines the energy you need to maintain this balance. The important thing is that this energy requirement is not the same for all individuals. If one person of 25 years has a certain EER, it is not mandatory that another person of the same age would have the same EER. Certain factors play roles in deciding the EER value. These include gender, height, weight, age and physical activity.

What is EER?

EER (Estimated Energy Requirement) is the intake of diet required by an individual to maintain balance. This intake depends on certain factors including age, weight, gender and the level of physical activity a person is involved in. The use of a quality calculator is the best way to determine correct EER values.

EER Formulas

The general EER equation is

$\textbf{EER = Total Energy Expenditure + Energy Deposition}$

 Gender Age Formula boy/Girl 0-3 months EER = $(89 \times \text{weight [kg]} - 100) + 175$ boy/Girl 4-6 months EER = $(89 \times \text{weight [kg]} - 100) + 56$ boy/Girl 7-12 months EER = $(89 \times \text{weight [kg]} - 100) + 22$ boy/Girl 13-36 months EER = $(89 \times \text{weight [kg]} - 100) + 20$ Boy 3-8 years EER =  $88.5 - 61.9 \times \text{Age} + \text{physical activity} \times (26.7 \times \text{weight [kg]} + 903 \times \text{height [m]}) + 20$ Girls 3-8 years EER = $135.3 - (30.8 \times \text{Age}) + \text{physical activity} \times {(10.0 \times \text{weight [kg]}) + (934 \times \text{height [m]}) } + 20$ Boy 9-18 years EER = $88.5 - 61.9 \times \text{Age} + \text{physical activity} \times (26.7 \times \text{weight [kg]} + 903 \times \text{height [m]}) +25$ Girl 9-18 years EER = $135.3 - (30.8 \times \text{Age}) + \text{physical activity} \times { (10.0 \times \text{weight [kg]}) + (934 \times \text{height [m]}) } + 25$ Boy 19 years or above EER = $662 - (9.53 \times \text(Age)) + \text{physical activity} \times { (15.91 \times \text{weight [kg]}) + (539.6 \times \text{height [m]}) }$ Girl 19 years or above EER = $354 - (6.91 \times \text{Age}) + \text{physical activity} \times { (9.36 \times \text{weight [kg]}) + (726 \times \text{height [m]}) }$

EER Formuls for Pregnant Women (14-50 years old)

 1st trimester EER = $\text{Non-pregnant EER}+ 0$ 2nd trimester EER = $\text{Non-pregnant EER} + 340$ 3rd trimester EER = $\text{Non-pregnant EER} + 452$

Lactation

 0-6 months postpartum EER = $\text{Non-pregnant EER}+ 330$ 7-12 months postpartum EER = $\text{Non-pregnant EER}+ 400$

all of these formulas and calculations can be performed very quickly and accurately by our estimated energy requirement calculator.

How to use our EER Calculator?

The process of our advanced Estimated Energy Requirement calculator is very simple. First, you have to fill up the EER Calculator form.

- Choose Gender

- Enter Age in years.

- Enter height in feet/inches or cm you can choose them in the dropdown.

- Enter your current weight in lbs or kg.

- Select your 1 working day Physical Activity.

- Click on "Calculate" button. The EER Calculator will show your Estimated Energy Requirement for one day in the result section.

How to Calculate EER?

The process of calculating EER is very simple and easy to understand. In the above formula, we can see that the two components involved in the EER formula are Total Energy Expenditure and Energy Deposition. The value of Total Energy Expenditure varies from one individual to the other on the basis of age, gender and other factors. It's better to calculate your body fat by body fat calculator before calculating EER.

EER Example

Calculate the EER of a child who is 2 months old and has a weight of 15 kg.

$\mathrm{EER_{(kcal/day)}} =\textbf{Total Energy Expenditure + Energy Deposition}$

Let us break down this formula further for a child of 2 months.

$\mathrm{EER} = (89 \times \mathrm{Weight_{kg}} - 100) + 175$

the weight is 15kg in this case. Thus, EER is given.

$\mathrm{EER} = \big( (89 \times 15) -100 \big) + 175$

$\mathrm{EER} = 1410$

Physical activity is an important factor

What kind of physical activities do you perform during the course of the day? Some people are not active at all. They do not walk or do any form of exercise. On the other hand, certain people work out regularly to keep themselves in shape. For them, the energy requirement would be more than people who are not very active physically. It depends on the physical tasks you perform during the course of the day.

What are the steps for using this EER calculation tool?

If you compare the steps for using this EER calculation with what other tools have, this is a much simpler option.

Here are the convenient steps, users have to go through.

The input fields you have to complete

A few important fields are analyzed to determine the value of EER. You need to provide your gender, age, height and weight. Along with that, select the physical activity level from the drop-down menu. The options you can make a selection from including sedentary, low active, active and very active. Let us use a set of values in the form of an example.

• Gender is Male
• Age is 32
• Height is 5ft and 8 inches
• Physical activity is sedentary

When you enter these values in their respective fields and click the “calculate” button, you would see the following result on the screen below.

EER = 3910 calories per day

Importance of EER

The calculation of EER is important and has to be performed correctly. Here are some factors which show why EER determination is important.

Correct selection of physical activities

All kinds of physical activities including exercising have to be selected according to the energy consumption that an individual has. With EER values, one can select the activities accordingly. In other words, physical activities that have a negative impact on the EER value should be avoided.

Consuming the needed nutrition

There is a minimum energy requirement for each individual depending on the physical activities he participates in.  If the energy consumption is below that, the individual would face weakness. Thus, when a person knows the EER value, he selects eating options according to his need. In this way, physical weakness is prevented.

References:

1. Shirley Gerrior, B. (2006). An Easy Approach to Calculating Estimated Energy Requirements |By ncbi.nlm.nih.gov
2. Birth low infants | Energy needs | depts.washington.edu
3. EER Equations - Nutrition for Healthy Living for Educators
4. Energy Requirements - an overview | ScienceDirect Topics by. W.P.T. James.

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mali khan | 26/09/2019

It very simple and accurate.