Calories, BMR and TDEE explained
Calories are the fuel your body gets from food, and every day you burn this energy to stay alive and move. Your Basal Metabolic Rate (BMR) is the energy your body uses at rest, while your Total Daily Energy Expenditure (TDEE) represents your full daily burn, including movement, exercise, and digestion. This page simplifies it all with clear visuals and an interactive calculator, helping you understand exactly how your body uses energy.
Every thing you need to know
🍔 Calories
A calorie is a unit of energy. Eating adds energy to your body. Moving, thinking, and living spend energy. If you eat more than you spend, you gain. If you eat a bit less than you spend, you lose.
🧠 BMR
Basal Metabolic Rate is your resting burn to keep you alive. Even if you stayed in bed, you would still burn energy breathing, pumping blood, and repairing cells.
🏃 TDEE
Total Daily Energy Expenditure is your BMR plus all other activity: walking, workouts, posture, fidgeting, and the energy used to digest food.
How they connect
- BMR is the base. Everyone has one.
- TDEE is the base plus movement and daily activity.
- Goals: eat a little under TDEE to lose, around TDEE to maintain, or a little over TDEE to gain.
BMR & TDEE Calculator
Macro split
A macro split is how you divide daily calories between protein, carbs, and fats to match goals like cutting, maintaining, or bulking.
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This page is for education. It is not medical advice.