Adaptive TDEE Calculator
Research-grounded energy expenditure tracking
Adaptive TDEE Calculator launched on June 6, 2026 with 7 votes, #1,808 of 22,647 launches that month and more than 90% of that year's launches.
What it does
An adaptive TDEE calculator that replaces vague 4-option activity checkboxes with an integrated AI parsing layer. The AI evaluates granular user data to determine precise activity inputs, which are then processed by exact mathematical formulas rather than static population averages. The calculation logic dynamically corrects for lean body mass, NEAT variance, metabolic adaptation, and the acute energetic cost of regular plasma donation, mapping all outputs directly to peer-reviewed research.
A total daily energy expenditure calculator grounded in published research. Corrects for lean mass, activity, NEAT, plasma donation, and metabolic adaptation.
Standard calculators predict a population average , then assume your metabolism is static. This one prioritises lean body mass , reads your week in plain English , and adjusts for NEAT , plasma donation , and metabolic adaptation . Every formula is tied to the sources cited below. Leave blank to use Mifflin-St Jeor . Enter a value to switch to the lean-mass Katch-McArdle equation — more accurate for lifters and anyone whose body composition is far from average. Typing is parsed instantly by a keyword engine. For messy or unconventional schedules (“two-a-days Tue/Thu, coach soccer on weekends”), click Understand with AI to send the text to Claude for a smarter read. Either way the calorie…from thetdee.com
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