Free Calorie Calculator (TDEE)

What is a Calorie Calculator (TDEE)?

A Total Daily Energy Expenditure (TDEE) calculator is an essential fitness tool that estimates how many calories your body burns in a 24-hour period. Our free calorie calculator takes your Basal Metabolic Rate (BMR) and multiplies it by an activity modifier to provide an incredibly accurate baseline for your daily nutrition.

How Does the Harris-Benedict Equation Work?

We utilize the revised Harris-Benedict formula, a scientifically validated mathematical equation. The formula evaluates your age, gender, height, and body weight to establish your BMR—the calories your body requires just to stay alive at rest. This base number is then multiplied against the thermic effect of your daily physical activity.

How to Use Your TDEE to Lose Weight or Gain Muscle

• For Fat Loss: Eat at a caloric deficit. Subtract 300-500 calories from your maintenance (TDEE) number. This will result in approximately 0.5 to 1 lb of fat loss per week safely.
• For Maintenance: Eat exactly your TDEE value to maintain your current body composition.
• For Muscle Gain (Bulking): Eat at a caloric surplus. Add 200-300 calories to your TDEE to fuel hypertrophy and muscle growth while minimizing excess fat gain.

Frequently Asked Questions (FAQ)

Is this an accurate calorie calculator?

Yes. The calculations are based on universally accepted metabolic formulas used by dietitians and nutritionists worldwide. However, every human metabolism is highly individual. Use this number as a starting baseline, track your body weight for 14 days, and adjust calories up or down based on the scale trend.

Should I recalculate this as I lose weight?

Absolutely. As you lose body mass, your body requires fewer calories to operate. We recommend recalculating your TDEE every time you lose or gain 5-10 pounds.