Calculate your Total Daily Energy Expenditure (TDEE) - the calories you burn per day.
TDEE (Total Daily Energy Expenditure) is the total number of calories you burn per day, including your basal metabolic rate and activity level. It is used to plan calorie intake for weight loss, maintenance, or gain.
This means a TDEE calculation for someone with a specific weight, height, age, and activity level - including a target rate of weight loss per week - can give a concrete daily calorie target rather than a rough guess.Total Daily Energy Expenditure (TDEE) represents all the calories a body burns in a day - not just from deliberate exercise, but from basal metabolic rate (the energy needed just to keep organs functioning), digestion, and general daily movement (often called NEAT, or non-exercise activity thermogenesis). This full picture matters because deliberate workout calories are usually a smaller slice of total daily burn than people assume - for most people, basal metabolic rate alone accounts for 60-75% of total calories burned in a day, which is why TDEE gives a far more accurate basis for setting calorie targets than trying to track workout calories alone.
Nutrition and fitness coaches use TDEE as the starting point for setting calorie targets, since a calorie deficit for weight loss or surplus for muscle gain only makes sense relative to an accurate estimate of maintenance calories in the first place.
People frequently select a higher activity multiplier than actually reflects their real daily movement, which inflates the TDEE estimate and can stall weight loss progress even while technically eating what seems like a reasonable deficit - being conservative and honest about actual activity level tends to produce more accurate, useful results.
Total Daily Energy Expenditure (TDEE) represents the complete number of calories burned in a day across all activities, combining Basal Metabolic Rate (calories burned at complete rest), the thermic effect of food (calories burned digesting and processing what's eaten), and calories burned through both structured exercise and everyday non-exercise movement (walking, fidgeting, daily chores) — a component sometimes called NEAT (Non-Exercise Activity Thermogenesis), which can vary surprisingly significantly between individuals with otherwise similar exercise habits.
TDEE serves as the central reference number for weight management planning, since comparing actual calorie intake against TDEE determines whether someone is in a calorie surplus (gaining weight), deficit (losing weight), or maintenance (stable weight), making an accurate TDEE estimate the essential starting point for any structured nutrition plan targeting a specific weight outcome.
Like BMR and calorie burn estimates generally, TDEE calculations are estimates with a meaningful margin of error, since individual metabolic variation, unaccounted-for NEAT differences, and imprecise physical activity self-reporting all introduce uncertainty. Tracking actual weight change over several weeks against a TDEE-based calorie target, then adjusting the target based on real observed results, produces a far more personalized and accurate number than relying on the initial formula-based estimate indefinitely.
Eat fewer calories than your TDEE to lose weight, or more to gain weight. A deficit of 500 calories/day typically leads to about 1 pound of weight loss per week.
BMR (basal metabolic rate) is just the energy needed to keep your body functioning at rest, while TDEE includes BMR plus digestion, daily movement, and exercise.
Activity level is often overestimated, and individual metabolism varies, so TDEE is a helpful starting estimate that may need adjustment based on real-world results over a few weeks.
Eating at TDEE is generally associated with weight maintenance - a deficit below TDEE supports weight loss, while a surplus above it supports weight gain.
