This tool estimates basal metabolic rate using the Mifflin–St Jeor equation for adults and then applies an activity multiplier to estimate daily energy expenditure (TDEE). A selected goal adjusts this estimate up or down.
The protein, carbohydrate and fat percentages are presets, not individually prescribed dietary requirements. If you choose a custom distribution, the percentages total 100 percent of the estimated calorie target.
Energy needs vary with body composition, age, health status and activity. These outputs are educational estimates and are not intended for children, pregnancy or management of medical conditions.