Weight Loss Calculator Weight Loss Calculator - The Lifestyle Bird Weight Loss Calculator Calculate your daily calorie needs and track your weight loss goals with this simple tool. Current Weight (kg): Goal Weight (kg): Timeframe (weeks): Activity Level: Sedentary (little or no exercise) Lightly active (light exercise 1-3 days/week) Moderately active (moderate exercise 3-5 days/week) Very active (hard exercise 6-7 days/week) Extra active (very hard exercise or physical job) Calculate