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About the Calorie Calculator
The Calorie Calculator estimates how many calories your body needs each day. Enter your age, gender, weight, height, and activity level, and it returns your daily calorie target with guidance for weight loss, maintenance, or weight gain goals.
The calculation starts with the Mifflin-St Jeor equation, the standard formula for basal metabolic rate. It then applies an activity multiplier to reflect your daily movement and exercise. Recalculate after every few kilograms of weight change, since your calorie needs shift as your body changes. For medical diets or persistent health concerns, consider a registered dietitian.
- Select your gender, then enter your age, weight, and height in the fields provided.
- Pick the activity level that best matches your typical week of movement and exercise.
- Read your daily calorie target and plan your meals to match that number.