TDEE Calculator
Estimated TDEE
Estimated BMR
1,709 kcal / day
What is TDEE?
TDEE means total daily energy expenditure. It is an estimate of the total calories your body uses across a full day, including resting energy needs, normal movement, exercise, and other daily activity.
Your resting energy estimate, commonly displayed as BMR in calorie calculators, is the starting point. This page uses the Mifflin-St Jeor equation for that resting estimate, then applies an activity factor so the result better reflects a typical day rather than complete rest.
A TDEE result is not a direct measurement or a promise of exact calorie needs. It is a practical maintenance estimate that can help you choose a starting calorie target and then compare that estimate with real-world progress.
How It's Calculated
This calculator first estimates resting energy expenditure with the Mifflin-St Jeor equation, then multiplies that resting estimate by the activity factor you select. For men, the formula is BMR = 10W + 6.25H - 5A + 5. For women, the formula is BMR = 10W + 6.25H - 5A - 161. The final estimate is TDEE = BMR x Activity Multiplier. The activity options use the common 1.2, 1.375, 1.55, 1.725, and 1.9 factors. These factors are practical activity-level rules of thumb and were not part of the original Mifflin-St Jeor study, so activity selection adds uncertainty to the final TDEE estimate.
TDEE = BMR x Activity Multiplier
- W = body weight in kilograms
- H = height in centimeters
- A = age in years
What to Do With Your Result
Treat your estimated TDEE as a maintenance baseline: an estimate of the daily calorie intake that may roughly match your current size and activity level.
Use that number as a starting point rather than a fixed prescription. Actual energy needs can vary with activity, body composition, training load, sleep, stress, and changes in routine.
Need.fit can use your goal, schedule, available equipment, and ongoing progress to build a more personalized plan around the estimate instead of treating one calculator result as a permanent target.