A BMR Calculator estimates your Basal Metabolic Rate—the number of calories your body needs to function at rest. It helps determine your daily calorie needs for maintaining, losing, or gaining weight.

Knowing your BMR helps you plan a calorie deficit or surplus for weight goals. It ensures you're eating the right amount of calories for your body type and activity level.

BMR is typically calculated using formulas like the Harris-Benedict Equation or Mifflin-St Jeor Equation, which consider your age, gender, height, and weight.

BMR is influenced by age, gender, body weight, height, muscle mass, and genetics. Lifestyle and health conditions also play a role.

While exercise doesn't directly change your BMR, strength training can increase muscle mass, which boosts your resting metabolism over time.

No. BMR is your body's calorie need at rest. To get your Total Daily Energy Expenditure (TDEE), you can multiply BMR by your activity factor.

BMR is your body's baseline energy requirement at rest. TDEE includes all activities—walking, working, exercising—and gives a more complete calorie estimate.

Yes. Men generally have higher BMR due to greater muscle mass, even at the same age and weight compared to women.

You can recheck BMR when your weight changes significantly or if your activity level or lifestyle changes.

BMR calculators are generally for adults. Children and seniors have different metabolic rates and should use age-specific calculators or consult a health professional.