Maintenance Calories: How to Calculate Yours Correctly
When being on a health journey, there are so many terms revolving around calories discussed today. These arithmetic calculations of calorie surplus, calorie deficit, and calorie maintenance have been formed as the crux to crafting a dietary as well as exercise regimen.
Before embarking on your fitness journey to lose weight, gain weight, or build muscle, it’s very important to understand the baseline, which is maintenance calories. Once you get to know the maintenance calories, the diet and exercise format can easily be worked around in order to reach the goal effectively. In order to lose weight, many people aggressively start cutting calories and increasing exercise intensity without knowing the baseline, leading to frustration, fatigue, and inconsistent results.
What Are Maintenance Calories?
Maintenance calories are the number of calories your body requires to maintain your current weight.
Your body burns some amount of energy to carry out activities like circulation, digestion, maintaining body temperature, and so on. This is called your Basal Metabolic Rate (BMR). Above this, you burn calories while walking, typing, going to the gym, or playing a sport. Addition of calories burned for activity and movement to the calories required for basic survival, digestion gives your total daily energy expenditure (TDEE). This is the total maintenance calories.
Theoretically, if you eat around your TDEE, weight stays the same, one does not gain nor lose and energy levels are balanced.
How to Calculate Maintenance Calories (Step-by-Step)
Calculating maintenance calories is very simple by just inserting basic details in a formula and multiplying them by the activity level, depending on how physically active one is. Let’s understand this step by step:
Step 1: Calculating Basal Metabolic Rate (BMR)
BMR accounts for about 60 – 75% of TDEE. It is the number of calories your body needs to survive at rest; it includes functions such as circulation, breathing, digestion, and other basic organ functions.
This calculation is commonly done using the Mifflin- St Jeor equation:
For women:
BMR = (10 × weight in kg) + (6.25 × height in cm) − (5 × age) − 161
For men:
BMR = (10 × weight in kg) + (6.25 × height in cm) − (5 × age) + 5
Because your Basal Metabolic Rate (BMR) makes up the majority of the calories you burn each day, even slight shifts in your body composition, particularly an increase in muscle, can gradually affect how much energy your body uses. That’s why building and preserving lean muscle isn’t only about how you look; it also plays an important role in keeping your metabolism functioning efficiently over time.
Step 2: Adjust For The Level Of Activity
Multiplying BMR by the activity level of the individual will help estimate Total Daily Energy Expenditure (TDEE). This number is the maintenance calories required.
Below are the multiplying factors for the level of activity:
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Sedentary (little to no exercise): BMR × 1.2
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Light activity (1–3 days/week): BMR × 1.375
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Moderate activity (3–5 days/week): BMR × 1.55
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Very active (6–7 days/week): BMR × 1.725
Step 3: Cross-check in reality
Everybody is unique in their own way; therefore, testing the calculated calories for about 2 – 3 weeks will help understand how the calculated number of calories works for one’s body.
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Weight stays the same - correct maintenance.
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Weight increases - calories are too high.
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Weight decreases - calories are too low.
If needed adjustments in calories can be made accordingly.
Step 4: Maintenance calories change over time.
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Maintenance calories change based on:
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Weight gain or loss
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Change in activity level
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Hormonal fluctuations
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Muscle mass of the body
Re-checking after a few months in accordance with the above changes is very important.
It’s a good idea to keep an eye on more than just weight, paying attention to energy levels, hunger pangs, sleep cycle, and performance during workouts can tell a lot more about whether the given calorie intake is actually working for one’s body.
Maintenance Calories vs Calorie Deficit
Distinguishing between maintenance and deficit is fundamental to effective nutrition planning:
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Maintenance calories represent energy balance wherein intake matches expenditure, and weight remains stable.
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Calorie deficit occurs when intake is below expenditure, wherein the body uses the stored energy reserves, leading to weight loss.
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Calorie surplus occurs when intake exceeds expenditure, leading to weight gain over time.
For fat loss, a calorie deficit below the maintenance calories is needed. Aggressive deficits are not recommended as they can slow metabolic rate, result in cravings, and loss of lean body mass. Calibrating calories well helps to yield better outcomes.
Factors That Affect Your Daily Calorie Needs
Daily calorie needs are not fixed; they change over time and depend on many factors. No two days are exactly the same. For example, when you’re unwell, your body may need extra energy to recover. On days when you’re more active or playing a sport, your calorie requirements naturally increase. And on quieter, less active days, your needs may be slightly lower.
Age
Calorie needs decrease as one ages. This age-related declining need in calories is due to the loss of lean muscle mass which is called sarcopenia. There are a number of researches that show adults lose about 3 – 8% of their muscle mass per decade starting in early 30s with rapid loss resulting by 60s. Therefore, calories that worked for one in their 20s will be different from the amount needed in 30s, 40s and so on.
Activity Level
Activity level is one of the important factors in deciding calorie needs. As seen earlier, the multiplying factor to BMR depends on the activity level of the individuals. Strenuous activities call for a greater number of calories in order to sustain that activity level, whereas light exercises call for fewer. This is in accordance with the number of calories one burns while carrying out the workout. Even small movements like walking, standing, and household chores add to this.
Metabolism
Metabolism is often defined as being fast or slow, but in reality, it is way more complex, influenced by a number of factors, muscle mass being one of the most important ones. Muscle is a metabolically active tissue, with people having a higher proportion burning more calories even when they are not physically active at the moment. Hormones such as Thyroid, Insulin, and Cortisol influence how the body stores and uses energy. Ongoing stress and poor sleep have an effect on metabolic balance. Contrary to common belief, metabolism is not a fixed setting you are born with. It functions as an adaptable system shaped and reshaped by physiological factors alongside lifestyle variables like movement, nutrition, and sleep.
Should You Track Calories Daily?
It completely depends on one’s choice and goals that the person is looking at to achieve. It can help if one is trying to lose or gain weight, if they’ve hit a weight loss plateau and need some clarity on how to go about further. At times many underestimate their food intake, calorie counting gives them a clear picture. However, calorie counting is not necessary for everyone, many do better with intuitive eating and working with portion sizes and hunger cues. For many counting calories can become very tedious.
The intention isn’t to rely on tracking methods indefinitely, but rather to treat them as a temporary support system that can be used when necessary. Tools like calorie counting or habit tracking can help build awareness, improve portion control, and create a clearer understanding of eating patterns. Over time, as you develop consistency and a better sense of your body’s needs, the dependence on these tools can gradually decrease. Ultimately, the aim is to internalize these habits so that making balanced choices becomes more intuitive, allowing you to maintain progress without constant monitoring.
Author: Sidra Patel
Nutritionist & Lifestyle Consultant
Founder: Eating Smart with Sidra Patel
www.eatingsmart.in