Daily Calorie Calculator

What Is a Calorie Calculator?

A calorie calculator estimates how many calories your body needs each day to maintain your current weight based on your age, gender, height, weight, and activity level. It uses well-known formulas to estimate your basal metabolic rate (BMR)—the energy required at rest—and adjusts it with your activity level to determine daily energy needs. :contentReference[oaicite:1]{index=1}

How the Calculation Works

First, the calculator estimates your BMR using a scientifically validated equation (Mifflin-St Jeor), which factors in your age, gender, weight, and height. Then it multiplies BMR by your physical activity level to estimate your total daily energy expenditure (TDEE). :contentReference[oaicite:2]{index=2}

Why Knowing Your Calorie Needs Matters

• ✔ Maintain your current weight by eating near your maintenance calories
• ✔ Lose weight by creating a calorie deficit
• ✔ Gain weight by creating a calorie surplus
• ✔ Plan nutrition for fitness goals like fat loss or muscle gain

Your calorie needs change with age, activity level, and body composition. Tracking calories can help you make informed choices about diet and weight goals. :contentReference[oaicite:3]{index=3}