How TDEE Works for Men
Your TDEE represents every calorie you burn in 24 hours — basal metabolism, daily movement, exercise, and the thermic effect of food. Men typically have a higher TDEE than women of the same weight because of greater muscle mass, larger organs, and higher testosterone, which raises resting energy expenditure.
This calculator uses the Mifflin-St Jeor equation, the most accurate formula for adult men in published research:
BMR = (10 × weight kg) + (6.25 × height cm) − (5 × age) + 5TDEE = BMR × activity multiplier
TDEE for Cutting (Fat Loss)
Subtract 500 calories from your TDEE to lose roughly 0.5 kg of fat per week. Most men can cut on 1,800–2,400 calories without losing muscle, provided protein stays at 1.6–2.2 g per kg of body weight and resistance training continues.
| Cutting Speed | Deficit | Weekly Loss |
|---|---|---|
| Slow / Recomp | −250 cal/day | ~0.25 kg |
| Standard cut | −500 cal/day | ~0.5 kg |
| Aggressive cut | −750 cal/day | ~0.75 kg (short-term) |
TDEE for Bulking (Muscle Gain)
- Lean bulk (+250 cal): ~0.25 kg/week — minimal fat gain, ideal for natural lifters
- Standard bulk (+500 cal): ~0.5 kg/week — faster gains, some fat
- Aggressive bulk (+750+ cal): Only for hardgainers or off-season athletes
Pair any surplus with progressive resistance training and 1.6–2.2 g protein per kg body weight to maximize muscle growth and minimize fat gain.
How Age Affects Male TDEE
Men lose 1–2% of muscle mass per year after age 30 without strength training (sarcopenia). Testosterone also declines roughly 1% per year. Combined, this drops TDEE by 100–200 calories per decade. Lifting heavy 2–4 times per week is the single most effective intervention to preserve TDEE as you age.
Common Mistakes Men Make With TDEE
- Overestimating activity: A 4-day gym schedule plus a desk job is "Moderately Active," not "Very Active"
- Under-tracking food: Sauces, oils, and weekend meals add 300–800 hidden calories
- Bulking too aggressively: A 1,000-cal surplus mostly turns into body fat, not muscle
- Skipping recalculations: Update your TDEE every 4–5 kg of weight change
Frequently Asked Questions
How many calories should a man eat per day?
The average adult man needs 2,400–3,000 calories for maintenance, but your exact TDEE depends on age, weight, height, and activity. Use the calculator above for your personal number rather than relying on a population average.
How do I calculate calories for bulking?
Add 250–500 calories above your TDEE. A 250-calorie surplus produces about 0.25 kg per week of mostly lean gains — ideal for natural lifters. A 500-calorie surplus is faster but adds more fat. Avoid surpluses above 750 calories unless you are a true hardgainer.
What is a safe calorie deficit for men cutting?
500 calories below TDEE is the standard. This produces about 0.5 kg per week fat loss while preserving muscle if protein is high. Going below 20% under TDEE risks muscle loss, hormonal drops, and rebound weight gain.
Does TDEE drop with age for men?
Yes — typically 100–200 calories per decade after 30. The cause is muscle loss and lower testosterone. Strength training 3–4 times per week largely prevents this drop. Most slowing-metabolism complaints are really muscle loss, which is reversible.
Why is my real-world weight loss slower than predictions?
Most men overestimate activity level and underestimate food intake. If your weight stalls after two weeks at the calculated deficit, drop activity level by one tier and track food precisely with a kitchen scale for one week.
Should I use Katch-McArdle if I lift weights?
Yes, if you know your body fat percentage. Katch-McArdle uses lean body mass directly and is more accurate for muscular men whose total body weight overestimates fat content. Enable it in Advanced Options and enter your body fat percentage.