Question 1

What is TDEE?

Accepted Answer

TDEE (Total Daily Energy Expenditure) is the total number of calories your body burns in a day, including your resting metabolism, daily activity, exercise, and the energy used to digest food. It's the foundation of any nutrition or weight management plan.

Question 2

How accurate is this TDEE calculator?

Accepted Answer

It uses the Mifflin-St Jeor equation, the most widely accepted formula for estimating metabolic rate, combined with an activity multiplier. It's accurate within roughly 10% for most healthy adults but is an estimate — not a lab measurement.

Question 3

How do I use my TDEE for weight loss?

Accepted Answer

To lose weight, eat below your TDEE. A daily deficit of 500 calories typically produces about 1 lb of weight loss per week. For a more precise target, use our Calorie Deficit Calculator.

Question 4

Should I recalculate my TDEE as I lose weight?

Accepted Answer

Yes. Your TDEE drops as your body weight decreases, since a smaller body burns fewer calories. Recalculate every 10–15 lbs of weight loss to keep your calorie target accurate.

Question 5

Does TDEE change if I'm on a GLP-1?

Accepted Answer

GLP-1 medications don't dramatically change your TDEE itself — they reduce appetite, which makes eating in a calorie deficit easier. Knowing your TDEE helps you avoid eating too little, which can compromise muscle, energy, and long-term results.

TDEE Calculator

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