Basal Metabolism Calculator

Basal Metabolic Rate (BMR) is the minimum amount of energy your body needs to maintain vital functions at rest, including breathing, circulation, and temperature regulation. This tool uses the widely-recognized revised Harris-Benedict equation to accurately calculate your BMR based on gender, age, height, and weight.

It also automatically computes your Total Daily Energy Expenditure (TDEE) across five activity levels: sedentary, light exercise, moderate exercise, active, and very active. Whether you are planning a diet, managing nutrition for strength training, or simply monitoring your health, this calculator provides a reliable baseline for understanding your daily caloric needs.

All data is processed entirely in your browser — your personal information is never sent to any server.