>>76274251>do you have a TDEE meter that is 100% accurate?first of all, perfection is the enemy of progress. 90%+ accurate is good enough.
1. use Mosteller formula
https://www.medcentral.com/calculators/body-metabolism/body-surface-area-bsa-mosteller-square-root-method
2. use stefan-boltzmann law to calculate your basal metabolic rate
https://en.wikipedia.org/wiki/Black-body_radiation#Human-body_emission
use the area from mosteller formula, and appropriate temperature and environmental temperature. this is the energy your body loses to heat.
3. identify your activity levels throughout the day, including sleeping. express all as metabolic equivalents (METS). for example, 8 hours sleeping, 14 hours sitting/watching TV, 2 hours walking (like to fridge, bathroom, etc.) use the compendium of physical activity to find how many METS each activity is.
4. take a weighted average of all the energy you burn as a function of your basal metabolic rate. VOILA! you now know your TDEE.
5. download calorie tracker. enter everything you eat in a day.
6. if consumption > TDEE you calculated, eat less.