What Is a Calorie Calculator?
A calorie calculator estimates how many calories your body needs each day based on age, weight, height, gender and physical activity level.
What Are Calories?
Calories are units of energy that fuel the body's daily functions, including movement, organ activity and exercise.
How Daily Calorie Needs Are Calculated
This calculator estimates Basal Metabolic Rate (BMR) using the Mifflin-St Jeor equation and then adjusts the result according to activity level.
Why Activity Level Matters
People who exercise frequently burn more calories and therefore require higher daily calorie intake to maintain their weight.
Calories for Weight Loss
Creating a moderate calorie deficit can help promote weight loss. Reducing calorie intake below maintenance levels is a common strategy.
Calories for Weight Gain
Individuals seeking weight gain generally consume more calories than they burn, creating a calorie surplus.
Practical Example
A moderately active 35-year-old person weighing 75 kg and measuring 175 cm may require approximately 2,400 to 2,700 calories per day to maintain body weight.
Using This Calorie Calculator
Enter your age, gender, weight, height and activity level to estimate your daily calorie requirements.