BMR Calculator – Calculate Your Basal Metabolic Rate & Daily Calorie Needs

Basal Metabolic Rate (BMR) is the number of calories your body needs to perform basic life-sustaining functions such as breathing, circulation, and cell production while at rest. Knowing your BMR helps you manage weight and energy needs effectively.

BMR is calculated using your weight, height, age, and gender. Common formulas include the Harris-Benedict and Mifflin-St Jeor equations, both designed to estimate calorie requirements for maintaining vital body functions.

BMR (Basal Metabolic Rate) measures energy used in a completely rested state, while RMR (Resting Metabolic Rate) measures energy used at rest but under less strict conditions. RMR is usually slightly higher than BMR.

Once you know your BMR, you can adjust calorie intake based on your goals. To lose weight, consume fewer calories than your total daily energy expenditure (TDEE). To gain weight, eat slightly above your TDEE.

Yes. BMR tends to decrease with age due to muscle loss and hormonal changes. It can also vary based on muscle mass, body composition, and overall physical activity level.

You can boost your BMR by increasing muscle mass through strength training, staying active, eating enough protein, and maintaining consistent sleep patterns and hydration.