TDEE Calculator – Estimate Daily Calorie Needs Instantly

Understanding the Data Output

The calculator provides three key metrics based on the input data:

  • Maintenance Calories: This is your TDEE—the energy required to keep your body at its current weight given your activity level.

  • Weight Loss: Calculated using a standard 500-calorie deficit, which typically results in approximately 1 lb of weight loss per week.

  • Muscle Gain: Calculated using a 500-calorie surplus, providing the extra energy needed for hypertrophy (muscle building) when combined with resistance training.