Energy Expenditure Calculator – Accurate TDEE & Calorie Estimator
Energy Expenditure (TDEE) Calculator
Estimate Basal Metabolic Rate (BMR) using Mifflin–St Jeor, convert to Total Daily Energy Expenditure (TDEE) using activity level, and adjust for goals.
Results
Understand Energy Use with This Easy-to-Use Calculator
Figuring out daily energy burn no longer needs guesswork. This Energy Expenditure Calculator gives a clear estimate of how many calories a person uses each day based on weight, height, age, sex, and activity level. It runs on Mifflin–St Jeor, a trusted formula in nutrition science, to calculate Basal Metabolic Rate (BMR) and then multiplies it by activity to estimate Total Daily Energy Expenditure (TDEE).
Each entry adjusts instantly, showing how lifestyle or fitness goals affect calorie needs. Users can pick between metric or imperial units, set activity intensity, and even explore calorie targets for losing or gaining weight. Beyond calories, it provides a simple macro breakdown to guide balanced eating—protein, fat, and carb ratios.
Built for both beginners and experienced fitness enthusiasts, this calculator makes it easy to see where energy goes every day. Whether aiming to shape up, maintain, or boost performance, it delivers a reliable estimate that helps plan meals and workouts with confidence.