A calorie in food is a unit of energy. Specifically, it measures the amount of energy your body can extract from what you eat and use to fuel everything from breathing to running. What nutrition labels call a “calorie” is technically a kilocalorie (kcal), equal to 1,000 small calories.

Understanding the Context

One small calorie is the energy needed to raise the temperature of 1 gram of water by 1°C. One food ... MSN: Calorie trap: Why many dog treats do more harm than good This calorie calculator estimates the number of calories needed each day to maintain, lose, or gain weight. Learn the kinds of calories and their effects.

Key Insights

The calorie is a unit of energy that originated from the caloric theory of heat. [1][2] The small calorie or gram calorie is defined as the amount of heat needed to raise the temperature of one milliliter of water by one degree Celsius (or one kelvin). [3][4][5] In the US, "large calorie" is also used to mean kilocalorie (1 kcal = 1000 cal) . [1][3] In nutrition and food science, the term ... Free online calorie calculator that helps you estimate your daily calorie needs for weight loss, gain, or maintenance using the Mifflin-St Jeor equation.

Final Thoughts

Easy to use, accurate, and customizable. Here’s a simple but accurate calorie calculator that shows exactly how many calories you should eat to lose or maintain weight. Calorie Calculator Use the calorie calculator to estimate the number of daily calories your body needs to maintain your current weight. What are calories? Many people are confused about calories and why they are important. Learn what calories are and determine how many calories you need.