Medical Calculators
Daily Calorie Needs Calculator
Your approximate daily need: calories to maintain your current weight.
Basal metabolic rate (BMR): calories — what your body burns at complete rest.
Results are approximate guidance only and are no substitute for consulting a specialist doctor.
About this calculator
Knowing your daily calorie needs is the starting point of any nutrition plan — whether to maintain, lose or gain weight healthily.
How the calculation works
The calculator uses the Mifflin-St Jeor equation, the most accurate accepted estimate of basal metabolic rate (BMR): for men 10×weight + 6.25×height − 5×age + 5; for women 10×weight + 6.25×height − 5×age − 161. The result is multiplied by an activity factor (1.2 sedentary to 1.9 very active) for the total daily need.
