This tool provides estimates, not medical advice. If you have a health condition, are pregnant, or have a history of disordered eating, consult a qualified professional first.
How many calories should I eat to lose weight?
If your goal is fat loss, you need a daily calorie intake that is lower than your calorie maintenance level. This calculator estimates that target using your age, sex, height, weight, and activity level. It gives you a practical number you can use to plan meals, track progress, and adjust over time.
The key idea is simple: a consistent, sustainable calorie deficit leads to weight loss. The best target is not the lowest number possible. It is the number you can maintain while still feeling energized, sleeping well, and training or moving regularly.
How this daily calories for weight loss calculator works
1) Estimate your BMR
BMR (Basal Metabolic Rate) is the energy your body uses at rest for essential functions like breathing, circulation, and cell repair. This calculator uses the Mifflin-St Jeor equation, one of the most common evidence-based methods.
2) Estimate your maintenance calories (TDEE)
BMR is then multiplied by your activity factor to estimate TDEE (Total Daily Energy Expenditure). TDEE is the approximate number of calories needed to maintain your current body weight.
3) Apply a calorie deficit
To lose weight, subtract calories from maintenance. This calculator offers three common deficit levels:
- Mild: easier hunger management, slower progress.
- Moderate: balanced and often the best long-term option.
- Aggressive: faster loss, but harder to sustain and more fatigue-prone.
What is a realistic rate of weight loss?
A realistic target for many people is around 0.25 to 0.75 kg (0.5 to 1.5 lb) per week. Faster rates can happen early due to water loss, but long-term fat loss usually follows a steadier curve. The goal is not speed—it is consistency.
How to use your calorie target in real life
Prioritize protein
Higher protein intake helps preserve muscle during a deficit and can improve satiety. A useful range for many people cutting weight is roughly 1.6 to 2.2 grams of protein per kilogram of body weight.
Build meals around whole foods
- Lean proteins (fish, poultry, eggs, Greek yogurt, tofu, legumes)
- High-fiber carbs (oats, rice, potatoes, beans, fruit)
- Vegetables in large volume for fullness
- Healthy fats (nuts, olive oil, avocado) in measured portions
Track and adjust every 2–3 weeks
If weight is not moving after two to three weeks of consistent adherence, adjust by 100–200 calories per day or increase activity slightly. Avoid constant day-to-day changes based on normal fluctuations.
Common mistakes that slow fat loss
- Setting calories too low and burning out quickly.
- Ignoring liquid calories and weekend overeating.
- Not tracking portions accurately.
- Sleeping poorly, which increases hunger and cravings.
- Expecting linear progress week to week.
FAQ
Should I eat the same calories every day?
You can. Some people prefer a weekly average (slightly higher on training days, lower on rest days). What matters most is your average intake over time.
Do I need exercise to lose weight?
Not strictly, but it helps. Resistance training helps preserve muscle, and cardio can increase total energy expenditure and improve heart health.
Why did weight loss stall?
As body weight drops, calorie needs also drop. Your previous deficit can become maintenance. Recalculate your target after every 3–5 kg (7–11 lb) of loss.
Final thoughts
A calorie target is a tool, not a rule carved in stone. Start with the estimate, follow it consistently, and make small adjustments based on real-world progress. Done patiently, this approach is one of the most reliable ways to lose fat while keeping your routine sustainable.