Metabolic Analysis

Calorie Calculator

Precision energy tracking based on the Mifflin-St Jeor Equation.

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Mastering Your Metabolism

What are Maintenance Calories (TDEE)?

Total Daily Energy Expenditure (TDEE) is an estimation of how many calories you burn per day when exercise is taken into account. It is calculated by first figuring out your Basal Metabolic Rate (BMR), then multiplying that value by an activity multiplier. Understanding your TDEE is essential for weight management, whether your goal is to lose, maintain, or gain weight.

Basal Metabolic Rate (BMR)

Your BMR is the number of calories your body needs to function at rest. This includes basic functions like breathing, circulating blood, and cell production. Even if you stayed in bed all day, your body would still burn these calories.

Mifflin-St Jeor Equation

Our calculator uses the Mifflin-St Jeor equation, widely considered the most accurate formula for predicting calorie needs in healthy adults. It takes into account your weight, height, age, and gender to provide a precise baseline.

The Road to Your Goal

Once you know your maintenance calories, you can adjust your intake based on your goals:

  • 🔥 Weight Loss: TDEE - 500 kcal
  • ⚖️ Maintenance: Eat at TDEE
  • 💪 Weight Gain: TDEE + 500 kcal
  • 🏃 Activity: Matters as much as diet

The Role of Physical Activity

Your activity level plays a massive role in your total calorie burn. Someone with a physically demanding job or intense workout routine will have a much higher TDEE than someone with a sedentary lifestyle. Our calculator provides options from "Sedentary" to "Extra Active" to help you find the most accurate match for your lifestyle.

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