The calories needed by a person's body are closely related to his/her sex, age, activity and weight, and age and sex will also have a great influence on the body's basal metabolic rate, which is basically negligible. Generally speaking, the calculation method is based on people's ideal weight and activity.

The ideal weight is equal to the height minus 105. Light manual workers need 25-30 kilocalories a day, medium manual workers need 30-35 kilocalories a day, and heavy manual workers need 35-40 kilocalories a day. The formula for calculating a person's body heat is the ideal weight, multiplied by the heat required for corresponding activities every day.

2. There are several rules for successful weight loss:

The daily intake of calories must be lower than the consumption of calories. The ideal calorie intake is 3500 calories a week, which is 500 calories a day.

In this way, you can effectively lose one pound a week, so before making a diet and exercise weight loss plan, you should know how many calories your body needs to consume every day, and you must control the total calorie intake and ensure that the calories you consume are lower than the calories you consume.