How many calories per day should you eat? It is one of the most common health questions online, and the answer is never a single number. Your age, sex, height, weight and activity level all play a role. A sedentary 50-year-old woman needs far fewer calories than a 25-year-old man who trains six days a week.
In this article you will find clear charts for men and women, broken down by age and activity level. You will also learn how many calories per day you need to lose weight, and the key mistakes to avoid.
Key takeaways
- Women typically need 1,400 to 2,400 kcal per day. Most women with office jobs and moderate exercise land between 1,800 and 2,200 kcal.
- Men typically need 1,800 to 3,000 kcal per day. Most moderately active men need 2,200 to 2,600 kcal.
- Weight loss requires a deficit of 300 to 500 kcal per day, which produces roughly half a kilogram (about 1 pound) of fat loss per week.
- Your total daily energy expenditure (TDEE) is made up of your basal metabolic rate (60 to 75 percent), the thermic effect of food (about 10 percent) and activity (15 to 30 percent).
- Never go below 1,200 kcal (women) or 1,500 kcal (men) on a sustained basis without professional guidance.
How many calories per day: the fundamentals
Your body burns calories around the clock, even while you sleep. This baseline burn is called your basal metabolic rate (BMR). On top of that comes every bit of movement you do throughout the day: walking, exercise, climbing stairs, even standing at your desk.
Your BMR plus your activity expenditure gives you your Total Daily Energy Expenditure (TDEE), the total number of calories you burn per day. This number determines whether you lose weight, gain weight or stay the same. Our complete guide to calorie counting explains how to calculate and apply your personal TDEE.
How many calories per day for women?
Calorie needs for women vary by age group and activity level. The table below is based on guidelines from major nutrition authorities including the EFSA and WHO.
| Age | Sedentary (little movement) | Moderately active (3 to 5x exercise/week) | Very active (daily exercise) |
|---|---|---|---|
| 19 to 25 | 1,800 kcal | 2,000 to 2,200 kcal | 2,400 kcal |
| 26 to 35 | 1,700 kcal | 2,000 kcal | 2,200 to 2,400 kcal |
| 36 to 50 | 1,600 kcal | 1,800 to 2,000 kcal | 2,200 kcal |
| 51 to 65 | 1,500 kcal | 1,800 kcal | 2,000 to 2,100 kcal |
| 65+ | 1,400 kcal | 1,600 to 1,800 kcal | 2,000 kcal |
Most women between 19 and 50 with an office job who exercise two to three times per week need roughly 1,800 to 2,200 kcal per day. The commonly cited figure of 2,000 kcal is a reasonable average for lightly active women.
How many calories per day for men?
Men generally have higher calorie needs due to greater muscle mass and higher body weight.
| Age | Sedentary (little movement) | Moderately active (3 to 5x exercise/week) | Very active (daily exercise) |
|---|---|---|---|
| 19 to 25 | 2,200 kcal | 2,600 to 2,800 kcal | 3,000 kcal |
| 26 to 35 | 2,100 kcal | 2,400 to 2,600 kcal | 2,800 to 3,000 kcal |
| 36 to 50 | 2,000 kcal | 2,200 to 2,400 kcal | 2,600 to 2,800 kcal |
| 51 to 65 | 1,900 kcal | 2,200 kcal | 2,400 to 2,600 kcal |
| 65+ | 1,800 kcal | 2,000 to 2,200 kcal | 2,400 kcal |
For the average moderately active man with an office job, daily needs sit around 2,200 to 2,600 kcal per day. The commonly cited 2,500 kcal figure is a reasonable starting point for this group.
How many calories per day to lose weight?
To lose weight, you need a calorie deficit: you eat fewer calories than you burn. But how large should that deficit be? For a detailed breakdown, see our guide to calculating your calorie deficit.
The safe guideline
A deficit of 300 to 500 kcal per day is widely considered the most effective approach for sustainable weight loss. It produces roughly half a kilogram (about 1 pound) of fat loss per week, which major health organisations consider a safe and maintainable pace.
| Group | Maintenance | Weight loss target (-400 kcal) |
|---|---|---|
| Woman (30, moderately active) | 2,000 kcal | 1,600 kcal |
| Woman (45, sedentary) | 1,600 kcal | 1,200 kcal |
| Man (30, moderately active) | 2,500 kcal | 2,100 kcal |
| Man (45, sedentary) | 2,000 kcal | 1,600 kcal |
What to watch out for when losing weight
Do not go too low. Most dietitians and health authorities recommend never going below 1,200 kcal (women) or 1,500 kcal (men) on a sustained basis. Eating too little can slow your metabolism, cause fatigue and lead to nutrient deficiencies.
Prioritise protein. During a calorie deficit, adequate protein is essential to preserve muscle mass. Aim for 1.6 to 2.0 grams of protein per kilogram of body weight per day, a range supported by the International Society of Sports Nutrition.
Weigh yourself weekly, not daily. Your weight fluctuates daily due to water balance, digestion and hormonal cycles. The weekly average tells the real story.
Be patient. Healthy weight loss takes time. Half a kilogram per week adds up to 26 kilograms in a year. Explore our evidence-based weight loss tips for more proven strategies.
How many calories do you burn per day?
Your total daily calorie burn consists of three components:
1. Basal metabolic rate (BMR). This accounts for 60 to 75 percent of your total burn. It is the energy your body uses for breathing, heart rate, temperature regulation and cell repair.
2. Thermic effect of food (TEF). Roughly 10 percent of your total burn. Digesting food requires energy too. Protein costs the most to digest (20 to 30 percent of its calories), followed by carbohydrates (5 to 10 percent) and fats (0 to 3 percent).
3. Activity thermogenesis. This makes up 15 to 30 percent of your total burn. It includes exercise, but also everyday movement like walking, standing and housework (known as NEAT, Non-Exercise Activity Thermogenesis).
Most adults burn between 1,600 and 2,800 kcal per day, depending on the factors above.
Calories per day during pregnancy and breastfeeding
Pregnant women need extra energy, but less than many people assume. The exact amount varies by trimester:
- First trimester. Little to no extra calories needed (EFSA estimates about 70 kcal).
- Second trimester. Roughly 250 to 340 kcal extra per day.
- Third trimester. Roughly 450 to 500 kcal extra per day.
- Breastfeeding. About 500 kcal extra per day.
Always consult your midwife or dietitian for personalised advice. These are guidelines; your actual needs depend on your weight, activity level and health status.
How to track your daily calories
Knowing how many calories per day you need is valuable, but tracking what you actually eat is what makes the difference. Research consistently shows that people underestimate their calorie intake. The most effective method is an app that lets you log meals in seconds.
At Moveno, we are building an app with AI recognition that identifies your meal from a photo and retrieves nutritional values from verified food databases. You get instant insight into whether you are on track with your daily goal, without the friction of manual entry. Want to learn more about getting started with calorie tracking? Our beginner guide walks you through it.
Frequently asked questions
How many calories per day should a woman eat to lose weight? Most women can lose weight on 1,400 to 1,800 kcal per day, depending on age, weight and activity level. Subtract 300 to 500 kcal from your personal maintenance needs. Do not go below 1,200 kcal on a sustained basis without professional guidance.
How many calories per day does a man need? The average moderately active man needs 2,200 to 2,600 kcal per day. For weight loss, subtract 300 to 500 kcal. For muscle building, add 250 to 500 kcal.
Is eating 1,000 calories per day safe? For most adults, 1,000 kcal per day is too low. It can lead to nutrient deficiencies, may slow your metabolism and can cause muscle loss. Only consider this level under the supervision of a doctor or registered dietitian.
How many calories does a normal person burn per day? Most adults burn 1,600 to 2,800 kcal per day, with 60 to 75 percent coming from the basal metabolic rate alone. Your exact burn depends on your muscle mass, weight, age and movement patterns.
Do I need to eat the same number of calories every day? No. Some people practise "calorie cycling", eating more on training days and less on rest days. What matters is your average intake over the week, not the exact number on any single day.
Start understanding your calorie needs today
Your daily calorie needs are personal. They depend on your age, sex, weight and how active you are. The charts in this article give you a solid starting point, but real insight comes from tracking what you eat.
Curious how many calories you need per day? The Moveno app calculates your personal calorie target and helps you track your daily intake with AI photo recognition and verified food databases. Join the waitlist and get early access.
Sources
- EFSA. Dietary Reference Values for Energy. efsa.europa.eu
- Harvard Health Publishing. Calorie counting made easy. health.harvard.edu
- Jager R, Kerksick CM, Campbell BI et al. (2017). International Society of Sports Nutrition position stand: protein and exercise. J Int Soc Sports Nutr, 14, 20. PubMed
- Westerterp KR (2004). Diet induced thermogenesis. Nutr Metab (Lond), 1(1), 5. PubMed
- Chung N, Park MY, Kim J et al. (2018). Non-exercise activity thermogenesis (NEAT): a component of total daily energy expenditure. J Exerc Nutrition Biochem, 22(2), 23-30. PubMed
