Calorie and Exercise Calculator: Track Both in One Place on Your GLP-1 Journey

A calorie and exercise calculator typically combines two things: your estimated daily energy needs (often called Total Daily Energy Expenditure, or TDEE) and the additional calories burned through deliberate activity. The result gives you a rough picture of your overall energy balance for the day.

Estimating your baseline energy needs

Your baseline calorie needs depend on factors such as your current weight, height, age, and general activity level. This baseline — sometimes called your resting or basal metabolic rate adjusted for activity — tells you roughly how many calories your body uses each day before any structured exercise is added. General educational ranges exist (many adults fall somewhere between 1,600 and 2,500 kcal depending on these variables), but the right number for you is individual and can shift over time as your weight changes on a GLP-1 medicine.

Adding exercise to the equation

Structured activity — a brisk walk, a gym session, a swim — burns additional calories on top of your baseline. The amount varies widely depending on the type, intensity, and duration of the activity, as well as your body size. A calorie and exercise tracker brings these two figures together so you can see whether your intake and output are broadly aligned with your goals.

Why this matters on a GLP-1 journey

Reduced appetite is one of the most commonly reported experiences for people taking Mounjaro or Wegovy. While eating less is often part of the goal, eating too little — particularly too little protein — can make it harder to preserve muscle and sustain energy. Keeping an eye on both calorie intake and activity output helps you stay in a range that supports your progress rather than working against it. For more detail on the nutrition side, see our guides on tracking calories and macros together and combining calorie and nutrition tracking.

Manually calculating calories and exercise every day quickly becomes a chore — and when appetite is already low, the last thing you need is friction around logging. GLP Trackr's food logging makes capturing your intake effortless: point your camera at a meal and the AI photo scan estimates calories, protein, and macros in seconds, without typing a thing. You can also search foods manually or scan a barcode for packaged items.

On the activity side, the app lets you set a daily steps target alongside your calorie and protein goals, so your movement and intake picture sit in the same place. The daily check-in captures your energy levels alongside food and weight data, which means you can start to see how your activity patterns relate to how you feel and how your progress is going — all from one dashboard rather than juggling separate tools.

For a joined-up view of your nutrition numbers, the free calorie and macro tracker in GLP Trackr gives you a running total of calories, protein, fibre, and more throughout the day. And if you want to dig deeper into the broader hub of calorie-tracking tools, our calorie calculator hub is a good place to start.

GLP Trackr is designed specifically for people on Mounjaro and Wegovy — so the meal plans, targets, and insights are built around the realities of GLP-1 life, not a generic fitness audience. The insights feature can surface correlations in your own data over time, helping you spot what's actually moving your results.

A note on targets: the numbers a calculator produces are a useful starting point, but any personalised calorie or activity target should be agreed with your prescriber or doctor, who knows your full health picture. GLP Trackr helps you track toward a goal — it does not set clinical targets for you.

Ready to bring your calorie and exercise tracking together? Download GLP Trackr on the App Store or Google Play and start your 7-day free trial — no commitment needed.