Find your daily calorie needs based on your age, weight, height, gender, and activity level.
This tool estimates your daily calorie needs based on your age, sex, height, weight, and activity level, providing targets for weight loss, maintenance, or weight gain. It's a foundational tool for nutrition and diet planning.
The calculator first estimates BMR (Basal Metabolic Rate) using a formula like Mifflin-St Jeor, then multiplies by an activity factor to get TDEE (Total Daily Energy Expenditure). Weight loss targets typically subtract a calorie deficit (often 500 calories for ~0.5 kg/week loss) from TDEE, while weight gain targets add a surplus.
Enter your age, sex, height, weight, and activity level, and select your goal (lose, maintain, or gain weight), and the calculator returns a daily calorie target.
Example: A person with a TDEE of 2,200 calories aiming for moderate weight loss might target around 1,700 calories per day (a 500-calorie deficit).
How accurate are calorie calculator estimates? They provide a reasonable starting point based on population averages and formulas, but individual metabolism varies, so it's often useful to track actual results over a few weeks and adjust the target as needed.
Why is a moderate calorie deficit recommended over a large one? Very large deficits can be harder to sustain, may cause more muscle loss, and can slow metabolism over time, while a moderate deficit (around 500 calories/day) supports steadier, more sustainable progress.
Does calorie counting account for food quality, not just quantity? No, calorie counting alone focuses on energy balance; nutrient quality, protein intake, and overall diet composition also matter significantly for health and body composition, beyond just the total calorie number.
Should exercise calories be added back to my daily target? This depends on whether your chosen activity multiplier already accounts for exercise — if your activity level setting already reflects your typical exercise, you generally shouldn't add exercise calories on top separately.
How often should I recalculate my calorie needs? It's generally useful to reassess every few weeks or after a meaningful weight change (like 5-10 lbs), since calorie needs shift as your body weight and composition change over time.