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EAT Calculator: What Is Exercise Activity Thermogenesis?

Calculate your estimated EAT, or Exercise Activity Thermogenesis, and see how much additional energy your planned exercise may use above what your body would have used at rest.

1

Your Body Weight

Enter your current body weight.
2

Exercise Type

Select the exercise intensity that best matches your workout.
3

Exercise Duration

min
Enter approximately how many minutes one workout lasts.
4

Workouts Per Week

/ week
Enter how many times you perform this type of workout per week.

Your Estimated Exercise Activity Thermogenesis:

0 kcal/day

This estimates how much additional energy your planned exercise contributes per day based on your weekly exercise frequency.

Your EAT Calculator Result

0
kcal / day
0
kcal / workout
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EAT Calculator: How Is Exercise Activity Thermogenesis Calculated?

EAT stands for Exercise Activity Thermogenesis. It describes the additional energy your body uses as a result of structured physical exercise, such as strength training, running, cycling, or other workouts. This calculator estimates EAT using a standard MET-based energy expenditure method, your body weight, exercise duration, and weekly exercise frequency.

The MET-Based EAT Calculation

MET, or metabolic equivalent of task, is used to estimate the energy cost of different physical activities. The standard MET equation estimates total energy expenditure during an activity, while the EAT calculation subtracts the approximate resting energy expenditure that would have occurred during the same period.

Estimated Net EAT Per Workout
(MET − 1) × 3.5 × Body Weight (kg) ÷ 200 × Exercise Minutes

The resulting value represents an estimate of the additional calories used because of the exercise itself, rather than simply counting all calories burned during the workout.

What Each Part of the EAT Formula Means

Term Explanation Example / Value
MET A standardized estimate of the energy cost of a physical activity relative to resting metabolism. 3.5–11+ depending on activity
Body Weight Body mass is included because larger bodies generally require more energy to perform the same activity. Entered in kg for the formula
Exercise Duration The number of minutes spent performing the selected exercise. 60 minutes
Resting Component One MET is subtracted to remove the approximate energy that would have been used at rest during the same period. MET − 1
Weekly Frequency The number of times the selected workout is performed each week. 4 workouts/week
Daily Average Weekly estimated EAT is divided by seven to produce an average daily contribution. Weekly EAT ÷ 7

Why the Calculator Subtracts Resting Calories

A workout does not represent only calories that would otherwise not have been burned. Your body would still use energy during those minutes even if you were resting. Subtracting approximately one MET helps estimate the additional energy expenditure attributable to exercise rather than counting the entire gross energy cost.

Gross Exercise Energy

Represents the estimated total energy used during the exercise period, including the energy your body would have used at rest.

Resting Energy

Represents the approximate energy your body would have used during the same period without exercise.

Net EAT

Represents the estimated additional energy expenditure associated with the exercise after the resting component is removed.

How Weekly EAT Is Converted to a Daily Average

Your exercise does not necessarily occur every day, so the calculator also considers how frequently you train. First, estimated net EAT per workout is multiplied by the number of workouts performed per week. That weekly estimate is then divided by seven to show the average daily contribution.

Weekly EAT
Net EAT Per Workout × Workouts Per Week
Average Daily EAT
Weekly EAT ÷ 7

Example: Estimating EAT From a Workout

Imagine a person weighing 154 lb (70 kg) performs 60 minutes of moderate weight training at an estimated 5.0 METs and trains four times per week. The calculator first estimates the gross energy expenditure, subtracts the approximate resting component, and then applies the weekly training frequency.

Example Calculation
(5 − 1) × 3.5 × 70 ÷ 200 × 60 ≈ 294 kcal per workout

At four workouts per week, the estimated weekly net EAT would be approximately 1,176 kcal. Dividing that value by seven gives an average contribution of approximately 168 kcal per day.

EAT vs. Total Calories Burned During Exercise

EAT and total exercise calorie expenditure are not necessarily the same number. Total exercise expenditure includes the energy required to perform the activity plus the energy your body would have used at rest, while net EAT attempts to isolate the additional expenditure caused by the exercise.

Total Exercise Calories

Includes both the exercise-related energy cost and the energy that would have been used at rest.

Net EAT

Removes the approximate resting component to estimate the additional energy associated with exercise.

Why It Matters

Using net expenditure can provide a more useful estimate when considering exercise as one part of total daily energy expenditure.

How Accurate Is an EAT Calculator?

MET-based calculations are useful for estimating energy expenditure, but they cannot precisely measure how many calories a specific person burns during every workout. Actual energy expenditure can vary with exercise intensity, fitness level, body composition, movement efficiency, technique, rest periods, and changes in intensity throughout a session.

Important: EAT is only one component of total daily energy expenditure. Your overall energy needs are also influenced by resting metabolic rate, the thermic effect of food, and non-exercise activity. Use this calculator as a practical estimate rather than an exact measurement.
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Fitness Calculators
EAT Calculator

EAT Calculator estimates Exercise Activity Thermogenesis, the additional energy your body uses from structured exercise. It uses a MET-based calculation that accounts for body weight, workout intensity, exercise duration, and weekly frequency. The calculator subtracts estimated resting energy expenditure to provide a net exercise-related calorie estimate. Use your result to better understand how exercise contributes to your overall daily energy expenditure.

Medical Disclaimer: The calculator results and information provided in this article are for educational and informational purposes only and do not constitute medical, health, or professional advice. Always consult with a qualified healthcare provider before making any decisions related to your health, diet, or fitness goals. Individual results may vary, and this tool should not be used to diagnose or treat any medical condition.

What Is EAT in Fitness?

EAT stands for Exercise Activity Thermogenesis and refers to the additional energy your body uses as a result of structured physical exercise. It includes activities such as strength training, running, cycling, and other planned workouts. EAT is one component of your total daily energy expenditure.

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How Is EAT Calculated?

EAT can be estimated using a MET-based energy expenditure equation that considers exercise intensity, body weight, and workout duration. The calculation subtracts the approximate energy your body would have used at rest during the same period. Weekly exercise frequency can then be used to estimate an average daily EAT contribution.

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What Is the Difference Between EAT and Exercise Calories?

Total exercise calories include the energy used during a workout as well as the energy your body would have used at rest during that time. Net EAT focuses on the additional energy expenditure caused by the exercise itself. This distinction can be useful when estimating how exercise fits into total daily calorie expenditure.

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How Many Calories Does Exercise Burn?

The number of calories used during exercise depends on factors such as body weight, exercise intensity, workout duration, and the type of activity. A heavier person will generally use more energy performing the same activity, while higher-intensity activities tend to have higher MET values. The EAT Calculator provides an estimate based on these variables.

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Does EAT Count Toward Daily Calorie Expenditure?

Yes, exercise-related energy expenditure contributes to your total daily energy expenditure. However, the exact contribution depends on how much and how intensely you exercise. EAT should be considered alongside resting metabolic rate, the thermic effect of food, and non-exercise activity when thinking about total energy needs.

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Is an EAT Calculator Accurate?

An EAT Calculator provides an estimate rather than a precise measurement of calories burned. MET values represent standardized activity intensities, while real-world energy expenditure varies between individuals and workouts. For this reason, EAT estimates are best used as a practical guide rather than an exact calorie measurement.

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