Calories Calculator Calorie Calculator. Use the calorie calculator to estimate the number of daily calories your body needs to maintain your current weight. CALCULATE YOUR OPTIMAL CALORIES Imperial Metric Basic Information Sex Male Female Age years Weight lbs Height ft in Goal Maintain Weight Mild Weight Loss Weight Loss Mild Weight Gain Weight Gain Activity Level Sedentary Spend most of the day sitting, with little or no exercise Light Exercise 1-3 times/week Moderate Exercise 4-5 times/week Active Daily exercise or intense exercise 3-4 times/week Very Active Intense exercise 6-7 times/week Extra Active Very intense exercise daily, or physical job Enter your email for results: Calculate now PRO | Cloud | By BLV