Calories in is an estimate of the amount of calories (energy) the body takes in through eating. In general: Weight gain may result when a person takes in more calories and is less active. Weight loss may result when a person takes in fewer calories and is more active.
Calories out is an estimate of the amount of calories (energy) your body uses up while at rest and through activity. Calculations for calories out are based on formulas for Estimated Energy Requirements (EER) while the body is at rest. EER was developed using normal weight individuals (BMI 18.5-25 kg/m) as measured by the doubly labeled water technique. The EER does not represent the exact dietary energy intake needed for a specific individual, but instead, reflects the average needs of the above group. The EER was developed by the Institute of Medicine of the National Academies of Science.
Your actual calories-out number may vary based on age, weight, height, gender and other factors. It also may change daily, based on your activities.
This tool uses the information you provided about what you eat (calories in) and how active you are (calories out).
In general: Weight gain may result when a person takes in more calories and is less active. Weight loss may result when a person takes in fewer calories and is more active.
The estimated difference between calories in and calories out is -- calories.
Your reported calories in is about the same as your reported calories out.
In general: Weight gain may result when a person takes in more calories and is less active. Weight loss may result when a person takes in fewer calories and is more active.
Understanding Calorie Balance
Managing your weight is all about understanding the amount of calories you eat and the amount of calories your body expends or "burns off."
To maintain weight, the calories you consume (calories in) must be about the same as the calories you burn (calories out). This includes calories burned through activity, as well as the calories your body burns while at rest each day. In general, weight loss may result when a person takes in fewer calories and is more active. Otherwise, weight gain may result.
Setting up meal and activity plans can make it easier to track your calories.
If you do not gain or lose weight as suggested by this calculator, it may mean that the estimate of calories in and out may not be accurate or it may be due to other factors. Talk to your health care professional about any questions you may have.