Calorie Calculator

Calculate your daily caloric needs based on your body metrics and activity level with our easy-to-use calculator.

Calorie Calculator
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Imperial Units
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Female
Male
Female
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About Calorie Calculator

Our Calorie Calculator helps you determine your daily caloric needs based on your age, gender, body measurements, and activity level, helping you to create a personalized nutrition plan.

How It Works

The calculator uses the Mifflin-St Jeor equation to estimate your Basal Metabolic Rate (BMR), then adjusts it based on your activity level to find your Total Daily Energy Expenditure (TDEE).

What Are Macronutrients?

Macronutrients (macros) are the three main nutrients your body needs in large amounts:

  • Protein: 4 calories per gram
  • Carbohydrates: 4 calories per gram
  • Fats: 9 calories per gram

About Calorie Calculation

Calorie Calculation Illustration

Understanding your daily caloric needs is essential for maintaining, losing, or gaining weight in a healthy way. Your body requires a certain number of calories to perform basic functions like breathing and cell production (your BMR), plus additional calories to fuel your daily activities.

How to Use This Calculator

  1. Select your preferred unit system (Metric or Imperial)
  2. Enter your gender, age, weight, and height
  3. Choose your activity level that best describes your weekly routine
  4. Select your weight goal (maintain, lose, or gain weight)
  5. Click "Calculate Calories" to see your personalized results

Understanding Your Results

  • Basal Metabolic Rate (BMR): The number of calories your body needs at complete rest to maintain basic functions.
  • Maintenance Calories: The total calories needed to maintain your current weight based on your activity level.
  • Daily Calories: Adjusted calorie intake based on your weight goal.
  • Macronutrient Breakdown: Recommended distribution of proteins, carbohydrates, and fats.

Factors Affecting Caloric Needs

  • Age: Metabolism typically slows as you age, decreasing caloric needs.
  • Gender: Men generally require more calories than women due to differences in body composition.
  • Body Size: Larger bodies require more calories to maintain basic functions.
  • Activity Level: More physical activity increases your daily calorie requirement.
  • Health Conditions: Certain medical conditions and medications can affect metabolism.