Skip to content
ZeroServer.tools

TDEE Calculator

Find your maintenance calories and daily targets for cutting or bulking.

Activity level
Maintenance calories (TDEE)
2,556 kcal/day
BMR 1,649 kcal/day at complete rest
Daily calories by goal
Aggressive cut (-500)2,056 kcal
Mild cut (-250)2,306 kcal
Maintain weight2,556 kcal
Mild bulk (+250)2,806 kcal
Aggressive bulk (+500)3,056 kcal

What TDEE is and how to use it

TDEE (Total Daily Energy Expenditure) is roughly how many calories you burn per day. It starts from your BMR — the energy you'd burn at complete rest, here via the Mifflin-St Jeor equation — multiplied by an activity factor. Eat around your TDEE to maintain weight; a deficit of ~500 kcal/day is a common target for losing about 0.45 kg (1 lb) per week, and a similar surplus for lean gains. These are estimates, not medical advice, and everything runs in your browser.

Related: the BMR calculator, the BMI calculator, and the body fat calculator.

Built and maintained by Meet Shah · Last updated

What this tool is used for

  • Estimating maintenance calories from weight, height, age and activity.
  • Getting a starting target for a cutting or bulking phase.
  • Seeing how much of the total comes from activity rather than baseline.
  • Comparing two activity multipliers on the same body figures.
  • Producing a number to discuss with a coach or a dietitian.

Frequently Asked Questions

What is the difference between BMR and TDEE?
BMR is what you burn at complete rest — breathing, circulation, cell maintenance — and typically accounts for 60–70% of the total. TDEE multiplies it by an activity factor to include movement, exercise and the energy cost of digesting food.
Which BMR equation does it use?
Mifflin-St Jeor, which superseded Harris-Benedict as the more accurate predictor for modern populations and is what the Academy of Nutrition and Dietetics recommends. Both are regressions on body mass, height, age and sex — neither knows anything about your body composition.
How accurate is the result?
Within about 10% for most people, and worse at the extremes — very muscular, very obese, or elderly. It is a starting estimate, not a measurement. The reliable method is to eat at the predicted level for two or three weeks and adjust from the weight trend.
Which activity multiplier should I choose?
Almost everyone overestimates. Sedentary (1.2) genuinely means a desk job and no training; 1.55 means moderate exercise three to five days a week, not an intention to. Picking one level too high is the single most common reason a calculated deficit produces no weight change.
Why do two people with identical stats burn different amounts?
Because the equations do not see body composition, thyroid function, or non-exercise activity — fidgeting, standing, pacing — which varies by hundreds of calories a day between individuals. That variance is real and is why the estimate needs calibrating against your own results.

Common errors and gotchas

  • Choosing an activity multiplier that flatters a mostly sedentary week, which is the largest error source here.
  • Treating the estimate as measured, when individual variation is substantial.
  • Adjusting the target daily rather than after a couple of weeks of weight data.
  • Double-counting exercise by using a high multiplier and adding workout calories on top.
  • Using it as medical or clinical guidance rather than a starting estimate.

Related Calculators tools

Private & free — this tool runs entirely in your browser.