Calorie Calculator
Calculate your daily calorie needs for weight loss, weight gain, or maintenance based on your personal details and activity level.
Personal Details
Calorie Results
Enter your details to calculate daily calorie needs
About the calorie calculator
This calorie calculator estimates basal metabolic rate (BMR), total daily energy expenditure (TDEE), and a goal-based calorie target from your personal inputs and activity level.
How to use it
- Choose metric or imperial units and enter age, sex, weight, and height.
- Select the activity level that best matches your usual routine.
- Choose a goal and calculate to view estimated BMR, TDEE, and macronutrient reference values.
Formula
Mifflin–St Jeor BMR × activity multiplier = estimated TDEE
Example
For a 30-year-old man weighing 70 kg and measuring 175 cm, the Mifflin–St Jeor estimate is about 1,674 kcal/day before applying an activity multiplier.
Important notes
These are estimates, not medical or dietary prescriptions. Energy needs vary with body composition, health, medications, and activity. The goal adjustments are simplified starting points; consult a registered dietitian or clinician for individualized guidance.