TDEE Calculator

The TDEE Calculator measures your total daily energy expenditure, including activity levels, to determine how many calories you burn in a day. This helps you fine-tune your weight loss treatment or weight loss solution by aligning your food intake with your activity level for sustainable progress.

Enter your details below to find your TDEE

Sex

Age

years

Height

Weight

lbs

Activity level

Your TDEE

calories / day

Basal Metabolic Rate (BMR)

What is TDEE?

Total Daily Energy Expenditure (TDEE) is the total number of calories your body burns in a full day — your Basal Metabolic Rate (BMR) plus everything on top of it, from workouts to walking to fidgeting.

TDEE is the number most nutrition plans should actually be built around: eat close to it to maintain weight, below it to lose, or above it to gain.

How is TDEE calculated?

We first estimate your BMR using the Mifflin-St Jeor equation, then multiply it by an activity multiplier that reflects how much you move in a typical week.

Formula

TDEE = BMR × activity multiplier

Example: BMR 1,500 × moderate activity (1.55) ≈ 2,325 calories/day

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Reviewed by

Rachel Matthews, MS, RD, CSSD

Rachel is a registered dietitian and board-certified specialist in sports dietetics with over 15 years of experience in clinical and fitness settings. She works with both athletes and individuals pursuing weight management goals, tailoring nutrition plans to support medication-assisted weight loss. Rachel has authored numerous nutrition education materials and brings an evidence-based yet practical perspective to fitness and dietary guidance.