How to calculate calories burned in a day
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Staying healthy and managing your weight requires an understanding of how many calories you burn each day. Many factors contribute to the total number of calories your body uses daily, including your age, weight, height, and activity level. This article will explain how to calculate the calories you burn in a day utilizing two primary methods: the Mifflin-St Jeor equation and tracking your daily activities.
Method 1: Mifflin-St Jeor Equation
The Mifflin-St Jeor equation is a widely used formula for estimating your Basal Metabolic Rate (BMR), or the number of calories your body needs at complete rest. This does not include any physical activities. The equation is as follows:
For men: BMR = (10 x weight in kg) + (6.25 x height in cm) – (5 x age in years) + 5
For women: BMR = (10 x weight in kg) + (6.25 x height in cm) – (5 x age in years) – 161
Once you have calculated your BMR, you can determine your Total Daily Energy Expenditure (TDEE) by applying an activity factor based on your lifestyle:
1. Sedentary (little or no exercise): BMR x 1.2
2. Lightly active (light exercise or sports 1-3 days a week): BMR x 1.375
3. Moderately active (moderate exercise or sports 3-5 days a week): BMR x 1.55
4. Very active (hard exercise or sports 6-7 days a week): BMR x 1.725
5. Extra active (very hard exercise, physical job, or training twice a day): BMR x 1.9
Multiply your BMR by your activity factor to determine your TDEE. This is the estimated number of calories you burn in a day.
Method 2: Tracking Your Daily Activities
Another way to calculate the calories burned in a day is to track your daily activities using an activity tracker or a smartphone with a health app. These devices measure your steps, heart rate, and other relevant data and estimate the calories burned in real-time.
To get a complete picture of your daily calorie expenditure, consider combining information from both methods. Start with your BMR and TDEE estimations, then compare them with your activity tracker data. This will allow you to refine your calorie intake goals and enhance your weight management or fitness plan.
In conclusion, there are two primary methods for calculating the calories burned in a day: the Mifflin-St Jeor equation and tracking your daily activities. By understanding how many calories you burn each day, you can create targeted meal plans and exercise regimes to stay fit and healthy. Remember that individual results may vary, so regularly reassessing/calculating your calorie expenditure and adjusting will ensure you remain on track towards meeting your fitness goals.