About TDEEcal.net
TDEEcal.net is a free, science-backed health and nutrition resource built for the millions of people who want to understand their calorie needs without signing up for apps, paying for subscriptions, or wading through inaccurate information.
Our flagship tool — the TDEE Calculator — uses three validated formulas (Mifflin-St Jeor, Harris-Benedict, and Katch-McArdle) to estimate your Total Daily Energy Expenditure in under 60 seconds. All calculations are performed client-side: your data never leaves your device and we never store personal information.
Our Mission
We believe that everyone deserves access to accurate nutritional information. Whether you are trying to lose fat, build muscle, maintain your weight, or simply understand how your body uses energy, our goal is to give you the clearest, most science-grounded tools available — completely free.
What We Offer
- TDEE Calculator — Our core tool. Enter your stats, get your Total Daily Energy Expenditure and personalized calorie targets instantly.
- BMR Calculator — Calculate your Basal Metabolic Rate using all three major formulas.
- Macro Calculator — Set your daily protein, carbohydrate, and fat targets based on your TDEE and goals.
- Calorie Deficit Calculator — Find your ideal deficit and estimate time to reach your weight loss goal.
- TDEE Knowledge Guide — A comprehensive library of evidence-based articles about TDEE, BMR, activity levels, and nutrition.
- Blog — In-depth articles covering specific populations, formulas, diets, and use cases for TDEE.
Our Editorial Team
All content on TDEEcal.net is written and reviewed by our editorial team with backgrounds in nutrition science, exercise physiology, and evidence-based health communication. Our articles cite peer-reviewed research and are updated regularly to reflect the latest scientific consensus.
We follow the principles of E-E-A-T (Experience, Expertise, Authoritativeness, Trustworthiness) in all our content:
- All claims are supported by citations to peer-reviewed research
- Content is reviewed and updated at least annually
- We clearly distinguish between established science and ongoing research
- All calculators are validated against published formula specifications
A Note on Accuracy
TDEE calculators are estimations based on validated predictive equations. Individual metabolic rates vary by ±10–20% from formula predictions due to genetics, body composition, hormones, and other factors. We always recommend using your calculated TDEE as a starting point and adjusting based on 2–4 weeks of real-world results.
Nothing on this website constitutes medical advice. For personalized nutrition guidance, please consult a registered dietitian or qualified healthcare professional.
Contact Us
Have a question, found an error, or want to suggest a feature? We’d love to hear from you. Visit our Contact page.