Free TDEE Calculator
Find Your Daily Calorie Needs
Use this Total Daily Energy Expenditure calculator to estimate your maintenance calories, fat loss calories, muscle gain calories, and daily macronutrient targets.
Your number is not a judgment. It is information. Use it with curiosity, compassion, and consistency.
Patty Durell’s TDEE Calculator estimates daily calorie needs, BMR, BMI, and starting macronutrient targets for maintenance, fat loss, and muscle gain. The calculator uses published BMR formulas, activity multipliers, and goal-based calorie ranges to help users make informed nutrition decisions with self-compassion.
Start Here
What Is TDEE?
TDEE stands for Total Daily Energy Expenditure. It is an estimate of how many calories your body uses in a full day.
Your TDEE is a starting point for better decisions.
Your body uses calories to keep you alive, move through your day, recover from activity, and support the systems that help you function. Your TDEE combines your resting calorie needs with your daily movement and activity level.
Once you have an estimate, you can better understand your maintenance calories, a reasonable fat loss range, and a moderate muscle gain range. This can help you stop guessing and start building a plan that supports your body instead of punishing it.
For Patty’s Self-Health approach, the goal is not simply to make the scale move. The goal is to protect muscle, support metabolism, build strength, improve energy, and create habits that last.
Calculate Your TDEE
Free Total Daily Energy Expenditure Calculator
This version follows the same published formula logic as TDEECalculator.net: Mifflin-St Jeor by default, Katch-McArdle when body fat percentage is entered, and activity multipliers for TDEE.
Your Results
| Starting Macro | Patty-Aligned Split | Estimated Grams |
|---|---|---|
| Carbohydrates | 45% | 0g |
| Protein | 30% | 0g |
| Fat | 25% | 0g |
Next Step
Now That You Have Your Number, What Comes Next?
Your TDEE gives you a starting point, but the real work is learning how to use that number in a way that supports your body, your goals, and your future Self.
This is not about starving, guessing, or chasing perfection. It is about giving your organism enough energy to build strength, protect muscle, support metabolism, and create habits you can actually live with.
After you calculate your daily calorie needs, use your results to plan meals with enough protein, high-fiber carbohydrates, healthy fats, and water. The goal is not simply to lose weight. The goal is to lose body fat, protect precious muscle, and build a stronger, healthier life.
Use the Number Wisely
How to Use Your TDEE in a Way That Supports Your Body
Numbers can be helpful, but they are not your worth, your identity, or your whole health story. Use your result as information, then bring Self-compassion into the next decision.
Start with maintenance.
Maintenance calories help you understand what your body may need to stay where it is. This is your baseline, not a verdict.
Adjust with care.
For fat loss, avoid drastic restriction. For muscle gain, avoid a careless surplus. Small changes are usually more sustainable than extreme ones.
Track the whole picture.
Pay attention to energy, strength, sleep, hunger, mood, body composition, and consistency. Your body gives feedback beyond the scale.
FAQs
TDEE Calculator Questions
Simple answers so the calculator feels useful instead of overwhelming.
Is this the same calculator as TDEECalculator.net?
It uses the same published calculation logic: Mifflin-St Jeor when body fat is not entered, Katch-McArdle when body fat percentage is entered, revised Harris-Benedict for comparison, and activity multipliers to estimate TDEE.
How should I use my TDEE number?
Use your TDEE number as an estimate, not a judgment. It can help you understand maintenance calories and build a realistic nutrition plan that supports strength, energy, body composition, and long-term habit change.
Why are my actual results different?
Your actual needs may vary based on metabolism, body composition, health history, sleep, stress, medications, hormones, digestion, training intensity, and daily movement. A calculator gives you a starting point. Your body gives you feedback.
Medical, Nutrition, and Fitness Disclaimer
This Total Daily Energy Expenditure calculator is an estimate tool designed to help you approximate daily calorie needs based on factors like age, sex, height, weight, activity level, and optional body fat percentage. These numbers are informational estimates only.
- Not medical advice: This calculator does not diagnose, treat, cure, or prevent any disease.
- Estimates only: Calorie needs and macro targets can vary significantly from person to person.
- Talk to a qualified professional: Consult a licensed healthcare provider and/or registered dietitian before making major changes to diet, exercise, supplements, or calorie intake.
- Extra care recommended: Get professional guidance if you are pregnant, postpartum, breastfeeding, under 18, in recovery from an eating disorder, or working with significant mental health concerns.