This calorie calculator estimates the daily energy intake needed to maintain your current weight based on your age, gender, height, weight, and activity level. WWI-standard metabolic equations determine your baseline burn.
Formula Used
Maintenance Calories = BMR × Activity Multiplier
BMR
— Basal Metabolic Rate calculated via the Mifflin-St Jeor formula
Activity Multiplier
— factor scales from 1.2 (sedentary) to 1.9 (extra active) based on exercise level
Maintenance Calories
— total calories burned daily (Total Daily Energy Expenditure, or TDEE)
Example Calculation
For a 25-year-old male weighing 75 kg, 180 cm tall, with a BMR of 1,755 kcal, who is moderately active (1.55 multiplier): Maintenance = 1,755 × 1.55 = 2,720 kcal/day to maintain weight.
Frequently Asked Questions
TDEE stands for Total Daily Energy Expenditure. It is the total number of calories your body burns in a 24-hour period, including sleeping, digesting food, and physical activity.
To lose weight, you must create a calorie deficit. A safe deficit is typically 300 to 500 calories below your maintenance level, aiming for a steady loss of 0.5 to 1 kg per week.
The calculator provides an estimate based on population averages. Actual energy expenditure varies based on muscle mass, thyroid function, genetics, and precise daily activity levels.
Moderately active is defined as engaging in moderate exercise or sports 3 to 5 days a week. If you work a desk job but walk regularly, lightly active (1.375) may be a safer estimate.
Yes. Muscle tissue is more metabolically active than fat tissue. People with higher muscle mass burn more calories at rest than individuals of the same weight with higher body fat.