The BMR (Basal Metabolic Rate) Calculator helps you estimate the number of calories your body burns at rest to maintain basic functions such as breathing, circulation, and cell production. By entering your age, sex, height, and weight, you can quickly calculate your daily energy needs using the Mifflin–St Jeor and Harris–Benedict formulas. This tool also provides your TDEE (Total Daily Energy Expenditure) based on your activity level, making it useful for weight loss, muscle gain, or maintaining a healthy lifestyle. Whether you want to design a diet plan or improve your fitness routine, this calculator gives you accurate results to better understand your body’s energy requirements.