Validated scientific formulas

Calculate Your Daily Calorie Needs

TDEE, basal metabolic rate, BMI, and macronutrients in a single calculation. Free and based on scientific formulas.

3
Formulas
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Calculations
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Free

Calculate Your TDEE

Enter your details to calculate your daily calorie needs using the most accurate formulas

Gender
' "
Activity Level
Goal
Your TDEE
0 kcal/day
Mifflin-St Jeor Formula
Basal Metabolic Rate (BMR)
0 kcal
BMI
0
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Target Calories
0 kcal
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Macronutrient Breakdown

Protein: 0g (0%)
Carbs: 0g (0%)
Fat: 0g (0%)

Meal Plan

Three simple steps

Calculate your calorie needs in less than a minute

1

Enter Your Data

Fill in the form with your gender, age, weight, height, and activity level. You can also add your body fat percentage for an even more accurate calculation.

2

Calculate TDEE

The calculator processes your data using the Mifflin-St Jeor, Harris-Benedict, and Katch-McArdle formulas to estimate your total daily energy expenditure.

3

Discover Your Macros

Get your TDEE, BMR, BMI, and the optimal breakdown of protein, carbs, and fat based on your goal: weight loss, maintenance, or muscle gain.

FAQ About TDEE and Calories

Answers to the most common questions about calorie needs and metabolism

TDEE (Total Daily Energy Expenditure) is the total number of calories your body burns in a day. It is calculated by multiplying your Basal Metabolic Rate (BMR) by a factor based on your physical activity level. Our calculator uses the Mifflin-St Jeor formula, which is considered the most accurate by the scientific community.

BMR (Basal Metabolic Rate) represents the calories your body burns at rest to maintain vital functions such as breathing, circulation, and body temperature. TDEE, on the other hand, also includes all calories burned during daily physical activities. TDEE is always higher than BMR and represents your actual daily calorie requirement.

To lose weight in a healthy and sustainable way, it is recommended to create a calorie deficit of 15-20% relative to your TDEE. For example, if your TDEE is 2000 kcal, you should consume about 1600-1700 kcal per day. Avoid overly aggressive deficits, as they can slow down your metabolism and cause muscle mass loss.

Macronutrients (protein, carbs, and fat) are calculated based on your target calories and the type of activity you do. For maintenance, a split of about 30% protein, 40% carbs, and 30% fat is recommended. For weight loss, it is preferable to increase protein to 35% and reduce carbs to 35%, keeping fat at 30%.

Yes, the Mifflin-St Jeor formula is considered the most accurate for estimating basal metabolic rate according to the American Dietetic Association. It has a margin of error of 5-10% compared to indirect calorimetry. For even more precise results, you can enter your body fat percentage in the calculator to also activate the Katch-McArdle formula.