How Many Calories Do You Burn Each Day?
Your body uses energy all day, not only during exercise. Your daily calorie burn combines basic body functions, movement, digestion and planned activity.
What daily calorie burn means
Your total daily calorie burn is the energy your body uses over a full day. It includes keeping you alive, digesting food and powering everything from walking to structured exercise.
Even on a quiet day, your body needs energy for breathing, circulation, temperature control and routine repair. This resting use usually forms a large part of your total, while movement adds an amount that varies from day to day.
The parts that make up your total
Resting energy needs are influenced by factors such as body size, age and body composition. Two people who look similar may still burn different amounts because bodies do not use energy in exactly the same way.
Movement includes formal workouts as well as standing, housework, commuting and general pottering about. Digestion also uses some energy, so your total is the sum of several changing parts rather than exercise calories alone.
How to estimate your burn
An online calculator can give you a starting estimate using details such as age, height, weight, sex and usual activity. Choose the activity level that reflects an ordinary week rather than your busiest or most ambitious one.
A watch or activity tracker can offer another estimate, but its number is not a direct measurement. Use it as a consistent reference and look at longer-term patterns rather than adjusting your food around every daily reading.
Use your food log to refine the estimate
Because you already track what you eat, you can compare your average intake with the direction of your weight over several weeks. If your weight is broadly steady, your average intake and energy use are likely to be fairly close, allowing for normal day-to-day changes.
If the trend moves consistently, your intake and burn are probably not matching, though the exact gap cannot be known from the scale alone. Treat your calculated calorie burn as a working figure, review it periodically and adjust your target gradually based on your own records.