This free keto macro calculator uses basic basal metabolic rate (BMR) as calculated by the Mifflin-St.Jeor formula. Since BMR only factors in the body’s basic metabolic processes, we need to account for additional daily activity separately. Saying you’re more active makes the formula give you greater daily calorie target.
Sedentary: Very little exercise and a desk job.
Lightly Active: Less than 20 minutes of not strenuous exercise per day.
Moderately Active: Somewhat active job and over three hours of moderate exercise (such as cycling, jogging or brisk walking) a week .
Very Active: Very active day job or intense exercise over 40 minutes a day most days of the week.