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Total Daily Energy Expenditure (TDEE) Calculator

Calculate your daily calorie needs based on your activity level and BMR.



TDEE Calculator - Understanding Your Total Daily Energy Expenditure

Knowing how many calories your body burns daily is a key part of reaching your health goals—whether you want to lose weight, build muscle, or stay where you are. That's where a TDEE calculator is useful. TDEE, or Total Daily Energy Expenditure, refers to the total number of calories your body needs daily, encompassing everything from breathing and digestion to workouts and daily activities.

A TDEE calculator gives you a clearer picture of your body's energy needs. This allows you to make better decisions about your diet and physical activity. In this article, we'll break down what TDEE is, how it's calculated, and how you can use it to guide your health and fitness journey.

What Is TDEE?

TDEE, or Total Daily Energy Expenditure, refers to the total number of calories your body burns in 24 hours, including:

  • Basal Metabolic Rate (BMR) – the calories your body uses at rest for basic functions like breathing and digestion.
  • Physical activity – all movement, from walking to intense workouts.
  • Thermic Effect of Food (TEF) – calories used to digest, absorb, and store food.

Your TDEE tells you how many calories you need to maintain weight.

Why Use a TDEE Calculator?

A TDEE calculator is a useful tool because it gives you a customized calorie estimate based on your:

  • Age
  • Gender
  • Height and weight
  • Activity level

This information helps you understand how many calories your body needs to function and stay active. Whether your goal is muscle gain, weight loss, or maintaining weight, your TDEE is the foundation for planning your meals and workouts.

How to Calculate TDEE

Your TDEE is calculated by determining your Basal Metabolic Rate (BMR) and multiplying it by an activity factor.

1. Calculate Your BMR

The most commonly used method is the Mifflin St Jeor Equation:

  • For men: BMR = 10 × weight (kg) + 6.25 × height (cm) – 5 × age (years) + 5
  • For women: BMR = 10 × weight (kg) + 6.25 × height (cm) – 5 × age (years) – 161
2. Multiply by Your Activity Level
Activity Level Description Multiplier
Sedentary Little to no exercise 1.2
Lightly active Light exercise 1–3 days/week 1.375
Moderately active Moderate exercise 3–5 days/week 1.55
Very active Hard exercise 6–7 days/week 1.725
Super active Intense daily training or physical job 1.9

TDEE = BMR × Activity Level

Example TDEE Calculation

You're a 30-year-old woman, 165 cm tall, weighing 60 kg, and moderately active.

  1. BMR = 10 × 60 + 6.25 × 165 – 5 × 30 – 161
  2. = 600 + 1031.25 – 150 – 161 = 1320.25 calories
  3. TDEE = 1320.25 × 1.55 = 2046.39 calories/day

This means you must eat around 2,046 calories daily to maintain weight.

How to Use TDEE for Your Goals

Once you know your TDEE, you can adjust your calorie intake based on your goals:

1. Weight Loss

You need a calorie deficit to lose weight—consume fewer calories than your TDEE.

  • A common starting point is to reduce daily intake by 500 calories.
  • This typically leads to a weight loss of about 0.5 kg (1 lb) per week.

Example:
TDEE = 2,000 calories
To lose weight: Eat around 1,500–1,700 calories/day

2. Weight Gain

You need a calorie surplus if you want to build muscle or gain weight.

  • Add 250–500 calories to your daily TDEE.
  • Choose nutrient-dense foods to support muscle growth and health.

Example:
TDEE = 2,000 calories
To gain weight: Eat around 2,300–2,500 calories/day

3. Weight Maintenance

If you're happy with your current weight and just want to stay healthy:

  • Eat at your TDEE level.
  • Adjust based on changes in activity or metabolism.
Factors That Can Affect TDEE
  • Muscle mass – More muscle burns more calories, even at rest.
  • Age – Metabolism slows down as you age.
  • Genetics – Some people naturally burn calories faster than others.
  • Hormones and health conditions – Thyroid issues or medications can change your calorie needs.
  • Sleep and stress – Poor sleep or chronic stress can affect your metabolism.
Benefits of Knowing Your TDEE
  • Understand your body's calorie needs
  • Set realistic and achievable goals
  • Avoid under- or overeating
  • Improve energy levels and workout performance
  • Create a long-term, healthy eating plan
Final Thoughts

A TDEE calculator is a smart, science-backed tool that helps you understand how many calories your body burns daily. Whether you're trying to gain muscle, lose fat, or stay in shape, knowing your TDEE allows you to make better choices around food, exercise, and overall health.

Use a TDEE calculator today to take the guesswork out of your fitness plan and start confidently moving toward your goals.