Free TDEE Calculator for Peptide Users (GLP-1, Weight Loss)

What is TDEE?

Total Daily Energy Expenditure (TDEE) is the total number of calories your body burns in a single day. It accounts for everything — from basic life-sustaining functions like breathing and digestion (your Basal Metabolic Rate, or BMR), to physical activity, and even the energy used to digest your food (the thermic effect of food).

Understanding your TDEE is the foundation of any effective nutrition plan. Whether your goal is fat loss, muscle gain, or simply maintaining your current weight, knowing how many calories you burn each day allows you to make informed decisions about how much to eat.

This calculator uses three scientifically validated formulas — Mifflin-St Jeor, Revised Harris-Benedict, and Katch-McArdle — and intelligently selects the most accurate one based on your inputs.

This calculator provides estimates only. Track your weight for 2–4 weeks and adjust intake based on real-world results. Consult a healthcare professional for personalized advice.

Your Details

All fields update results in real-time

Gender

Age (years)

Height

Weight

lbs

Body Fat %

Activity Level

Athlete?

Custom Multiplier

TDEE Breakdown

•BMR (~60-70%) — Calories burned at complete rest to keep you alive
•Activity (~20-30%) — Energy used during exercise and daily movement
•TEF (~10%) — Thermic effect of food; energy to digest what you eat

💡 Pro Tip

Your TDEE is an estimate. For best results, track your weight for 2–4 weeks and adjust your intake by 100–200 calories based on real-world trends.

Your Daily Energy Expenditure

2845

calories / day

Katch-McArdle

Body fat % provided — lean mass based calculation is more precise

BMR

1836

cal/day at rest

BMI

24.5

Normal

Formula Comparison

Formula	BMR	TDEE
Mifflin-St Jeor	1780	2760
Harris-Benedict	1853	2872
Katch-McArdle Best	1836	2845

Goal Calories

Macro Breakdown — 2845 cal

Protein213g

Carbs285g

Fat95g

Ultimate Smart TDEE Calculator