--- title: "TDEE Calculator" site: ProCalc.ai section: Health url: https://procalc.ai/health/tdee markdown_url: https://procalc.ai/health/tdee.md date_published: 2026-04-11 date_modified: 2026-04-13 date_created: 2026-02-26 input_mode: focused --- # TDEE Calculator **Site:** [ProCalc.ai](https://procalc.ai) — Free Professional Calculators **Section:** Health **Calculator URL:** https://procalc.ai/health/tdee **Markdown URL:** https://procalc.ai/health/tdee.md **Published:** 2026-04-11 **Last Updated:** 2026-04-13 **Description:** Calculate your Total Daily Energy Expenditure, macro split, and body composition. Free TDEE calculator with BMR formulas, meal planning, and weight. > *This file is served for AI systems and search crawlers. Human page: https://procalc.ai/health/tdee* ## Overview ProCalc.ai’s TDEE Calculator helps you estimate how many calories you burn in a day, combining your baseline needs with the energy you spend moving around. You’ll use the TDEE Calculator when you want a clear starting point for planning meals, adjusting training, or setting a realistic calorie target without guessing. Recreational lifters and people following structured fat-loss or muscle-gain plans use it to dial in intake week to week instead of relying on generic calorie charts. For example, if you’ve just switched from a desk job to a role where you’re on your feet all day, you can rerun… ## Formula Calculating your Total Daily Energy Expenditure (TDEE) is a fundamental step for anyone looking to manage their weight, whether that's through gaining, losing, or maintaining. TDEE represents the total number of calories your body burns in a 24-hour period, taking into account your basal metabolic rate (BMR) and your physical activity level. The ProCalc.ai TDEE calculator utilizes a two-step process. First, it calculates your Basal Metabolic Rate (BMR) using the Mifflin-St Jeor Equation, which is widely recognized for its accuracy. The BMR is the number of calories your body burns at rest to perform basic life-sustaining functions like breathing, circulation, and cell production. For men, the Mifflin-St Jeor Equation is: BMR = 10 * weight (kg) + 6.25 * height (cm) - 5 * age (years) + 5 For women, the Mifflin-St Jeor Equation is: BMR = 10 * weight (kg) + 6.25 * height (cm) - 5 * age (years) - 161 In these formulas: * `weight (kg)` is your body weight in kilograms. * `height (cm)` is your height in centimeters. * `age (years)` is your age in years. The ProCalc.ai calculator handles unit conversions automatically. If you input your height in feet and inches, it converts it to centimeters using the conversion factor of 1 inch = 2.54 cm and 1 foot = 12 inches. Similarly, if you input your weight in pounds, it converts it to kilograms using the conversion factor of 1 lb = 0.453592 kg. For example, if you enter 5 feet 10 inches, it becomes ((5 * 12) + 10) * 2.54 = 177.8 cm. If you enter 170 lbs, it becomes 170 * 0.453592 = 77.11 kg. Once the BMR is determined, it is then multiplied by an activity factor to estimate your TDEE. This activity factor accounts for the additional calories burned through daily activities and exercise. TDEE = BMR * activity factor The activity factors used are: * **Sedentary (little to no exercise):** 1.2 * **Lightly active (light exercise/sports 1-3 days/week):** 1.375 * **Moderately active (moderate exercise/sports 3-5 days/week):** 1.55 * **Very active (hard exercise/sports 6-7 days/week):** 1.725 * **Extra active (very hard exercise/physical job):** 1.9 For instance, if your BMR is 1500 calories and you are moderately active (activity factor 1.55), your TDEE would be 1500 * 1.55 = 2325 calories. The calculator then rounds this value to the nearest whole number. It also provides estimates for a caloric deficit (TDEE - 500 calories) and a caloric surplus (TDEE + 500 calories), which are common targets for weight loss and gain, respectively. It's important to understand that while the Mifflin-St Jeor Equation is highly regarded, all BMR and TDEE formulas are estimations. Individual metabolic rates can vary due to factors like body composition (muscle mass versus fat mass), genetics, and hormonal influences. For example, individuals with higher muscle mass typically have a higher BMR than those with more fat mass, even at the same weight. The activity factors are also general guidelines; a highly active individual might burn more or less than the average for their category depending on the intensity and duration of their specific activities. For the most precise measurements, clinical methods like indirect calorimetry would be required, but for practical purposes, this calculator provides an excellent starting point for understanding your energy needs. ## How to Use Your Total Daily Energy Expenditure (**TDEE**) is the estimated number of calories you burn each day when **Basal Metabolic Rate** (**BMR**) is combined with your activity level. Understanding your TDEE is crucial for setting accurate calorie targets whether your goal is weight maintenance, loss, or gain. ## What Is TDEE? TDEE stands for Total Daily Energy Expenditure. It represents the total number of calories your body uses in a 24-hour period, taking into account all activities from sleeping to intense exercise. It's a more comprehensive measure than just your Basal Metabolic Rate (BMR), which only accounts for the calories your body burns at rest to maintain basic bodily functions like breathing, circulation, and cell production. Knowing your TDEE allows you to: * Maintain Weight: Consume roughly your TDEE calories. * Lose Weight: Consume fewer calories than your TDEE (creating a caloric deficit). A common target for sustainable weight loss is a 500-calorie deficit per day, aiming for approximately 1 pound of fat loss per week. * Gain Weight/Muscle: Consume more calories than your TDEE (creating a caloric surplus). A 500-calorie surplus is often used for muscle gain. ## The Formula The TDEE calculation typically involves two main steps: first, determining your Basal Metabolic Rate (BMR), and then multiplying it by an activity factor. The most widely used formula for BMR is the Mifflin-St Jeor Equation, which is considered highly accurate. Here's how it breaks down: 1. Calculate BMR (Basal Metabolic Rate): * For Men: BMR = (10 * weight in kg) + (6.25 * height in cm) - (5 * age in years) + 5 * For Women: BMR = (10 * weight in kg) + (6.25 * height in cm) - (5 * age in years) - 161 Before applying the formula, you'll need to convert your measurements: * Weight in kg: Weight in lbs * 0.453592 * Height in cm: (Height in feet * 12 + Height in inches) * 2.54 2. Calculate TDEE: Once you have your BMR, you multiply it by an activity multiplier based on your daily routine: * Sedentary (little to no exercise): BMR * 1.2 * Lightly Active (light exercise/sports 1-3 days/week): BMR * 1.375 * Moderately Active (moderate exercise/sports 3-5 days/week): BMR * 1.55 * Very Active (hard exercise/sports 6-7 days/week): BMR * 1.725 * Extra Active (very hard exercise/physical job): BMR * 1.9 ## Step-by-Step Example Let's calculate the TDEE for a 30-year-old moderately active male who is 5 feet 10 inches tall and weighs 170 lbs. Step 1: Convert Measurements * Weight in kg: 170 lbs * 0.453592 = 77.11 kg * Height in cm: (5 feet * 12 inches/foot + 10 inches) * 2.54 cm/inch = (60 + 10) * 2.54 = 70 * 2.54 = 177.8 cm Step 2: Calculate BMR (Male Formula) * BMR = (10 * 77.11) + (6.25 * 177.8) - (5 * 30) + 5 * BMR = 771.1 + 1111.25 - 150 + 5 * BMR = 1737.35 calories Step 3: Apply Activity Multiplier Since our individual is "Moderately Active," we use a multiplier of 1.55. * TDEE = BMR * Activity Multiplier * TDEE = 1737.35 * 1.55 * TDEE = 2692.99 calories (rounded to 2693 calories) So, this individual's estimated TDEE is approximately 2693 calories. * For weight maintenance, they would aim for ~2693 calories/day. * For weight loss, a 500-calorie deficit would be 2693 - 500 = 2193 calories/day. * For muscle gain, a 500-calorie surplus would be 2693 + 500 = 3193 calories/day. ## Common Mistakes to Avoid 1. Inaccurate Activity Level: This is the most common error. Be honest about your activity. If you work a desk job and exercise 3 times a week, you're likely "lightly active" or "moderately active," not "very active." Overestimating your activity will lead to a higher TDEE and potentially hinder weight loss goals. 2. Ignoring **NEAT**: Your Non-Exercise Activity Thermogenesis (NEAT), which includes all movement not considered formal exercise (e.g., walking, fidgeting, standing), plays a significant role in your true daily expenditure. While the activity multipliers account for this broadly, a very active job versus a sedentary one can dramatically change your actual calorie burn. 3. Not Re-evaluating: Your TDEE isn't static. As you lose or gain weight, your body's energy needs change. Your BMR will decrease with weight loss and increase with weight gain. Re-calculate your TDEE every few weeks or months to ensure your calorie targets remain accurate. ## When to Use This Calculator While you can manually calculate your TDEE using the formulas provided, a calculator is incredibly useful for quickly and accurately determining your caloric needs without the hassle of conversions and multi-step arithmetic. Use it whenever you're starting a new diet, changing your exercise routine, or notice your progress stalling. It provides a reliable starting point for managing your caloric intake for any body composition goal. ## Authoritative Sources This calculator uses formulas and reference data drawn from the following sources: - [CDC — Physical Activity](https://www.cdc.gov/physical-activity/) - [NIH — National Institute of Diabetes](https://www.niddk.nih.gov/) - [NIH — National Heart, Lung, and Blood Institute](https://www.nhlbi.nih.gov/) ## Frequently Asked Questions ### What is TDEE and why is it important for my health goals? TDEE stands for Total Daily Energy Expenditure, which is the total number of calories your body burns in a 24-hour period. Knowing your TDEE is crucial because it provides a baseline for how many calories you need to consume to maintain your current weight, lose weight (by eating less than your TDEE), or gain weight/muscle (by eating more than your TDEE). ### How is my TDEE calculated? Your TDEE is calculated by first determining your Basal Metabolic Rate (BMR) – the calories your body burns at rest – using factors like your age, sex, height, and weight. This BMR is then multiplied by an activity factor, which accounts for the additional calories you burn through daily activities and exercise. Our calculator uses the Mifflin-St Jeor equation for BMR, which is widely recognized for its accuracy (Source: Silver: Mayo Clinic). ### What's the difference between BMR and TDEE? Your BMR (Basal Metabolic Rate) is the minimum number of calories your body needs to perform basic, life-sustaining functions like breathing, circulation, and cell production, even if you were to do nothing all day. TDEE (Total Daily Energy Expenditure) takes your BMR and adds in the calories burned from all physical activity, including exercise, work, and even fidgeting, giving you a more complete picture of your daily calorie burn. ### How accurate is this TDEE calculator, and what are its limitations? While our TDEE calculator uses a well-established formula (Mifflin-St Jeor), it provides an estimate. Individual metabolic rates can vary due to genetics, body composition (muscle vs. fat), and hormonal factors. For the most precise measurement, especially for specific health conditions, consulting a healthcare professional or registered dietitian is recommended (Source: Gold: NIH). ### Once I have my TDEE, how do I use it to lose weight or gain muscle? To lose weight, you'll generally aim to consume 300-500 fewer calories than your TDEE daily to create a caloric deficit. For muscle gain, you'll typically eat 300-500 more calories than your TDEE to provide a caloric surplus. Remember to combine this with appropriate exercise and monitor your progress, adjusting your intake as needed. ### What are the different activity levels, and how do I choose the right one? Activity levels range from 'sedentary' (little to no exercise) to 'very active' (intense exercise 6-7 days a week). Choose the level that best reflects your average weekly activity. If you're unsure, it's often better to start with a slightly lower activity factor and adjust as you observe your body's response, as overestimating activity is a common mistake. ### Can I use this TDEE calculator during pregnancy or breastfeeding? You can use it as a starting estimate, but energy needs often change substantially during pregnancy and lactation. Many people require additional calories beyond standard activity multipliers, and needs vary by trimester, milk production, and body size. For safety and appropriate weight-gain targets, confirm your calorie and nutrient plan with a qualified clinician. ### Is the TDEE calculator free to use? Yes, the calculator is free to use. There are no charges required to view your estimated TDEE results. If optional premium features or coaching are offered, they will be clearly labeled separately from the calculator. ## Sources - [CDC — Physical Activity](https://www.cdc.gov/physical-activity/php/about/index.html) - [NIH — National Institute of Diabetes](https://www.niddk.nih.gov/) - [NIH — National Heart, Lung, and Blood Institute](https://www.nhlbi.nih.gov/) - [CDC — Healthy Weight](https://www.cdc.gov/healthy-weight-growth/about/index.html) - [USDA — MyPlate](https://www.myplate.gov/) --- ## Reference - **Calculator page:** https://procalc.ai/health/tdee - **This markdown file:** https://procalc.ai/health/tdee.md ### AI & Developer Resources - **LLM index (short):** https://procalc.ai/llms.txt - **LLM index (full, with content):** https://procalc.ai/llms-full.txt - **MCP server:** https://procalc.ai/api/mcp - **Materials JSON API:** https://procalc.ai/api/materials.json - **Developer docs:** https://procalc.ai/developers - **Sitemap:** https://procalc.ai/sitemap.xml - **Robots:** https://procalc.ai/robots.txt ### How to Cite > ProCalc.ai. 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