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Brain tumor, breast cancer, colon cancer, congenital heart disease, heart arrhythmia. Javascript is required in order to use this web app. Use the calorie calculator to estimate the number of daily calories your body needs to maintain your current weight. Select the statement that best describes your usual activity level.

Inactive: Never or rarely include physical activity in your day. Somewhat active: Include light activity or moderate activity about two to three times a week. People judge the intensity of their activities differently. And activity levels can change over time. So think of your calorie estimate as a starting point and adjust it up or down as you alter your activity level. Created by Mayo Foundation for Medical Education and Research based on Harris Benedict Equation and Institute of Medicine Dietary Reference Intakes.

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The calorie is a unit of energy that originated from the obsolete caloric theory of heat. For historical reasons, two main definitions of “calorie” are in wide use. In nutrition and food science, the term calorie and the symbol cal almost always refers to the large unit. This unit was used by U. Joseph Howard Raymond, in his classic 1894 textbook A Manual of Human Physiology.