TDEE Calculator

Your brain alone uses about 20% of your daily calories, making it one of the most energy-hungry organs.

Muscle tissue burns 6 calories per pound at rest, while fat burns only 2 calories per pound.

Your body burns extra calories to maintain its temperature, which is why cold exposure can boost metabolism.

Sleep deprivation can reduce your metabolic rate by up to 5-20% and increase hunger hormones.

The thermic effect of food accounts for about 10% of your TDEE - protein burns the most during digestion.

Your metabolism naturally slows by 2-3% per decade after age 20, but strength training can offset this.

Drinking cold water can temporarily boost metabolism by 24-30% as your body heats the water.

Genetics account for only about 5-10% of metabolic rate differences - lifestyle choices matter more.