When choosing a TDEE calculator, it’s important to consider several factors. First, make sure the calculator is based on accurate data and takes into account key parameters: age, gender, weight, height, activity level, and goal (weight maintenance, weight gain, or weight loss). This is critical because your basal metabolic rate and energy needs depend on these individual parameters. Personally, I prefer calculators that allow you to choose between different activity levels, from minimal activity to intense exercise. Some calculators allow you to additionally enter body composition data, such as body fat percentage, which makes the calculation even more accurate.