How Many Calories Do You Need to Burn to Lose Weight?

Your body burns a baseline number of calories just to keep you going — breathing, digestion, circulation — known as your basal metabolic rate (BMR). Add movement, exercise, and daily activity on top of that and you get your total daily energy expenditure (TDEE). When you consistently eat fewer calories than your TDEE, or burn more through activity, the resulting deficit draws on stored energy and weight loss follows over time.

What does a calorie deficit actually look like?

A 500-calorie daily deficit is often referenced as a rough guide because it can translate to a gradual reduction in body weight over weeks. However, this is a general educational figure — not a personal prescription. Factors like muscle mass, age, hormones, sleep quality, and how active you are all shift the number that is right for you. Very large deficits are generally not recommended because they can lead to muscle loss and fatigue, so any meaningful change to your targets is worth discussing with your prescriber or doctor.

How GLP-1 medicines affect the equation

Medicines like Mounjaro (tirzepatide) and Wegovy (semaglutide) act on appetite-regulating pathways, and many people report a reduced sense of hunger and lower overall calorie intake as a result. This can shift the deficit calculation — you may naturally eat less without needing to track every gram. Even so, understanding roughly how many calories you need each day can help you stay nourished, hit your protein goals, and avoid under-eating to the point of fatigue.

For a broader look at the numbers, our calorie calculator hub covers TDEE, BMR, and how to put the figures together. You may also find it useful to explore how many calories to eat per day on a GLP-1 journey alongside thinking about what to burn.

Knowing the theory is one thing — staying on top of it day to day is where most people find it hard. GLP Trackr's food logging makes it straightforward to see your intake without tedious manual entry: point your camera at a meal and the AI photo scan delivers an instant calorie and protein breakdown. When your appetite is unpredictable on a GLP-1 medicine, that kind of frictionless logging means you capture what you actually eat rather than guessing.

Once your intake is logged, GLP Trackr's targets feature lets you set a daily calorie goal so you can see at a glance whether you are in deficit, on track, or have room to eat more. Pair this with the insights and analytics tools — which surface patterns between your food, activity, and weight trends — and you get a clearer picture of what is genuinely moving your results week to week. For a deeper dive into the numbers, see understanding how many calories you need to burn to lose weight.

Keep in mind that calorie targets are general guides, not medical prescriptions. Your prescriber or doctor is best placed to advise on the right deficit for your individual situation, health history, and how your body is responding to treatment. GLP Trackr helps you gather the data to have those conversations with confidence — it is a tracking companion, not a clinical adviser.

Ready to turn scattered numbers into a clear daily picture? Download GLP Trackr on the App Store or Google Play and explore it free for your first 7 days.