General calculator
TDEE Calculator
Calculate your Total Daily Energy Expenditure (TDEE). Find out how many calories you burn per day based on your activity level and fitness goals.
Introduction
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) and then multiplying that value by an activity multiplier.
How to Use
To use the TDEE calculator, enter your age, gender, weight, and height to calculate your BMR. Then select your daily activity level (from sedentary to extra active) to find your total daily maintenance calories.
Formula
TDEE = BMR × Activity Multiplier. The BMR is calculated using the Mifflin-St Jeor Equation.
Examples
Example: A person with a BMR of 1600 kcal who is "Moderately Active" (1.55) would have a TDEE of 1600 * 1.55 = 2480 kcal per day.
Results Explained
Your TDEE represents the number of calories you need to consume to maintain your current weight. To lose weight, you should eat less than your TDEE; to gain weight, eat more.
Related Calculators
Understanding Your Total Daily Energy Expenditure (TDEE)
Total Daily Energy Expenditure (TDEE) is the total number of calories your body burns in a 24-hour period. It is the sum of your Basal Metabolic Rate (BMR), the Thermic Effect of Food (TEF), and the energy used during physical activity. Understanding your TDEE is fundamental for anyone looking to manage their weight, whether the goal is fat loss, muscle gain, or maintenance.
The Components of TDEE
TDEE is composed of several key factors:
- Basal Metabolic Rate (BMR): The energy required to keep your body functioning at rest (breathing, circulation, cell production). This usually accounts for 60-75% of your TDEE.
- Thermic Effect of Food (TEF): The energy used to digest, absorb, and process the nutrients in your food. This typically makes up about 10% of your total calories.
- Physical Activity Level: This includes both structured exercise (EAT - Exercise Activity Thermogenesis) and non-exercise activities like walking, fidgeting, and standing (NEAT - Non-Exercise Activity Thermogenesis).
How to Use TDEE for Weight Management
Once you have calculated your TDEE using our tool, you can use that number as a baseline for your nutritional goals:
- Weight Maintenance: Eat the same number of calories as your TDEE.
- Weight Loss (Caloric Deficit): Consume fewer calories than your TDEE. A common starting point is a 500-calorie deficit per day, which theoretically leads to about 1 pound of weight loss per week.
- Weight Gain (Caloric Surplus): Consume more calories than your TDEE. This is often used by athletes and bodybuilders looking to build muscle mass.
Activity Levels Explained
Choosing the right activity level is crucial for an accurate calculation:
- Sedentary: Little to no exercise, desk job.
- Lightly Active: Light exercise or sports 1-3 days per week.
- Moderately Active: Moderate exercise or sports 3-5 days per week.
- Very Active: Hard exercise or sports 6-7 days per week.
- Extra Active: Very hard daily exercise or physical job (e.g., construction).
By regularly tracking your TDEE and adjusting your caloric intake, you can achieve your fitness goals with scientific precision.
Frequently Asked Questions
What is TDEE?
TDEE stands for Total Daily Energy Expenditure. It is the total number of calories your body burns in a day, including exercise and daily movement.
Is TDEE or BMR more important?
Both are important, but TDEE is more practical for daily life. BMR is what you burn at rest, while TDEE is what you actually burn during your day-to-day activities.
How many calories should I eat to lose weight?
A safe approach is to eat 500 calories less than your TDEE. This usually results in a weight loss of about 0.5kg (1lb) per week.
Can my TDEE change?
Yes, your TDEE changes as you lose or gain weight, change your activity level, or age. It is good to recalculate every few weeks.
Does muscle mass affect TDEE?
Yes, muscle tissue burns more calories than fat tissue at rest. Increasing your muscle mass will increase your BMR and consequently your TDEE.
How accurate is this TDEE calculator?
Our calculator uses the Mifflin-St Jeor formula, which is considered the gold standard for metabolic rate estimation. However, individual results may vary based on genetics and body composition.