TDEE Calculator

TDEE Calculator is a free online tool that estimates your Total Daily Energy Expenditure (TDEE) — the number of calories your body burns daily. It uses the Mifflin–St Jeor equation, one of the most accurate formulas for estimating basal metabolic rate (BMR), and applies an activity factor to calculate maintenance calories. The tool is designed for anyone looking to manage their weight, plan meals, or optimize performance, from fitness enthusiasts to individuals starting a weight loss journey.

Key Features

• Mifflin–St Jeor Equation: Uses a research-backed formula to estimate BMR, ensuring reliable baseline calculations.
• Activity Level Selection: Choose from five activity levels (Sedentary to Athlete) to tailor the TDEE estimate to your lifestyle.
• Imperial and Metric Units: Supports both pounds/inches and kilograms/centimeters for user convenience.
• Calorie Targets: Provides maintenance calories and suggests deficits or surpluses for weight loss or gain.
• Copy and Share Results: Easily copy or share your TDEE results with others.
• Educational Content: Includes detailed explanations of TDEE, BMR, activity factors, and how to use the results effectively.

Use Cases

• Weight Management: A person aiming to lose weight can use the calculator to find a daily calorie deficit of 250–500 calories below their TDEE, then track their progress over 2–3 weeks.
• Meal Planning: An athlete can determine their maintenance calories and split them into protein, carbohydrate, and fat goals to support training and recovery.
• Performance Optimization: A fitness enthusiast can adjust calorie intake based on TDEE to avoid under-eating (which hurts recovery) or over-eating (which limits progress).

What Makes It Stand Out Unlike many calorie calculators, TDEE Calculator provides transparent methodology by citing the Mifflin–St Jeor equation and offering detailed educational sections. It also includes practical advice on how to adjust calorie targets based on real-world weight changes, making it a trustworthy starting point for diet planning.

Summary TDEE Calculator is a straightforward, evidence-based tool that gives users a personalized calorie estimate to support weight management, meal planning, and fitness goals. Its clear interface and educational content make it accessible for beginners while remaining useful for experienced individuals.