Maintenance Calorie Calculator: how to calculate daily calorie needs for weight management?

Medically Reviewed By
Dr. Ragiinii Sharma
Written By Dr Divya Rohra
on Mar 24, 2022
Last Edit Made By Dr Divya Rohra
on Jan 10, 2025

Calorie deficit – these two words will haunt you in your dreams when you are on a weight managing diet. However, as daunting as the subject is, calorie management and a healthy reduction are associated with weight loss, as studies suggest.
But, how many calories should you eat every day?
There is no “standard” number for the daily calorie requirement. Every individual has subjective needs, especially depending on the kind of daily activities they indulge in. The total calorie intake per day also depends on age, sex, and height.
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If you struggle to calculate your daily calorie intake and want a better understanding, our maintenance calorie calculator should give you a detailed understanding.
Step 5 – Once you get the BMR, multiply it by the Activity Modifier. An activity modifier is a table that correlates to the daily activities one indulges in every day. Here’s a quick breakdown of the same. You can find more in the image below:
Step 6 – That’s all. Once you multiple the activity modifier with the BMR, your daily calorie needs to prioritize all the essential factors.
Maintenance Calorie Calculator
Most of the calorie calculators you come across online are based on the Mifflin-St Jeor equation. This considers the individual’s gender, age, height, weight, activity level to make a precise and more accurate estimation of the daily calorie requirement for their body. Some of these calculators also take genetics, medications, and underlying chronic illnesses into consideration to give a healthy estimation of an individual's calorie needs. However, if you are one of those wondering how to calculate calorie intake manually, we have a step-by-step guide for that as well. Here’s what you need to do: Step 1 – Step on a weighing machine to find and calculate your body weight (in kilograms). Step 2 – For men, multiply the weight by 1.0. For women, multiply the weight by 0.9. Step 3 – Multiply the result from Step-2 by 24. Step 4 – Find your lean factor depending on your body fat percentage, as shown in the image below and multiply it as well. This will give you the Basal Metabolic Rate (BMR).
Step 5 – Once you get the BMR, multiply it by the Activity Modifier. An activity modifier is a table that correlates to the daily activities one indulges in every day. Here’s a quick breakdown of the same. You can find more in the image below:
Step 6 – That’s all. Once you multiple the activity modifier with the BMR, your daily calorie needs to prioritize all the essential factors.



