TDEE Calculator for Lifters

Your Total Daily Energy Expenditure (TDEE) is the total number of calories you burn in a day. It combines your Basal Metabolic Rate (BMR), daily activity, and the energy cost of your training sessions. Knowing your TDEE is the foundation for any nutrition plan, whether your goal is gaining muscle, losing fat, or maintaining your physique.

How TDEE Is Calculated

This calculator uses the Mifflin-St Jeor equation to estimate your BMR, which is the number of calories your body needs at complete rest. Your BMR is then multiplied by an activity factor that accounts for your daily movement and training frequency. The result is your estimated TDEE.

• BMR - Calories burned just keeping you alive (breathing, digestion, circulation).
• Activity factor - A multiplier based on how active you are outside the gym.
• Training adjustment - Additional calories burned during resistance training sessions.

Applying Your TDEE to Your Goals

Once you know your TDEE, adjusting your intake becomes straightforward. For muscle gain (bulking), eat 300 to 500 calories above your TDEE. For fat loss (cutting), eat 300 to 500 calories below. For maintenance, eat right at your TDEE. These ranges are starting points. Track your weight over 2 to 3 weeks and adjust based on real results.

Why Lifters Need More Precision

General TDEE calculators often underestimate the needs of people who train with weights regularly. Resistance training burns significant calories during the session and elevates your metabolic rate for hours afterward. This calculator factors in your training frequency to give you a more accurate estimate. Still, no calculator is perfect. Use the number as a starting point and let your scale weight and performance guide further adjustments.