Calories are the units of energy your body uses to perform daily activities such as breathing, walking, and digestion. Your daily calorie needs depend on factors such as age, gender, body weight, height, and physical activity level.
To lose weight safely, most people reduce their daily calorie intake by about 300–500 calories below maintenance level.
To gain weight, you generally need to consume about 300–500 extra calories per day.
You can estimate your daily calorie requirements quickly using our calculator.
Return to the homepage: Fit Metrics Tools