How Many Calories Should a Woman Eat Each Day?

Your total daily energy requirement comes from a few compounding factors: your basal metabolic rate (the calories your body burns at rest), your physical activity level, and the small additional cost of digesting food. Put them together and you get what is often called your Total Daily Energy Expenditure, or TDEE.

Why the range is so wide

A 25-year-old woman who trains most days will need substantially more energy than a 65-year-old woman with a desk job and a gentle daily walk — even if they weigh exactly the same. Body composition matters too: more muscle means a higher resting burn. This is why any single headline figure, including the commonly cited 2,000 kcal benchmark used on food labels, is a population average rather than a personal prescription.

How GLP-1 medicines can change the picture

Many people taking Mounjaro or Wegovy report noticeably reduced appetite and lower food intake, particularly after a dose adjustment. Eating significantly less than your body needs for an extended period can affect energy, muscle retention, and overall progress — which is why keeping an eye on how many kcal you actually need per day matters while you are on this journey. For a broader look at what a kilocalorie is and how it applies to your GLP-1 journey, that context can help make the numbers feel less abstract.

A note for men and those with different goals

The question of how many kcal a man needs per day follows the same logic — TDEE driven by size, age, and activity — but the typical range is generally higher, often 2,000–3,000 kcal, reflecting average differences in muscle mass and body size. The calculator approach works the same way regardless. For a step-by-step look at working out how many kcal you personally should eat, the principles apply equally.

General activity-level benchmarks

• Sedentary (little or no exercise): roughly 1.2 × your basal metabolic rate
• Lightly active (light exercise 1–3 days a week): roughly 1.375 ×
• Moderately active (moderate exercise 3–5 days): roughly 1.55 ×
• Very active (hard exercise 6–7 days): roughly 1.725 ×

These multipliers are widely used educational estimates. They give a reasonable starting point, but they are not a clinical prescription — individual variation is real, and your prescriber or doctor is the right person to discuss specific dietary targets with you.

Knowing your target is one thing; hitting it consistently — especially when appetite fluctuates week to week on a GLP-1 medicine — is another. GLP Trackr's AI food photo scan is the most practical place to start: point your phone camera at a meal and get an instant breakdown of calories, protein, and macros without typing a single thing. On days when food noise is low and meals are small, that frictionless logging is what actually keeps your data accurate.

Once you have a calorie target in mind, you can set it directly in the app alongside your protein, water, and fibre goals. Your calorie calculator hub is a good place to work out the right number to aim for before you set it. The daily check-in then pulls everything together — weight, energy, and intake — so you can see at a glance whether your intake is aligned with how you feel and how your progress is moving.

GLP Trackr also surfaces insights from your own data over time, flagging patterns like the relationship between your protein intake and your weekly results, which can be a genuinely useful conversation starter with your prescriber or dietitian.

General information about calorie ranges is educational — it is not a substitute for personalised guidance. If you are unsure what intake level is right for your situation, your prescriber or doctor is the best person to ask.

Ready to make calorie tracking effortless? Download GLP Trackr on the App Store or Google Play and explore it free for 7 days — no commitment needed.