GUIDE深度 · Deep dive

TDEE and the Three Macros

TDEE is daily total expenditure, roughly BMR times an activity factor. Fat loss needs a deficit, muscle gain a small surplus; prioritize protein, keep a fat floor and fill the rest with carbs. Any formula is a starting point; the 2-4 week weight trend is the feedback.

更新 2026-10-31 · 公式可核验

BMR: Mifflin-St Jeor.

TDEE: BMR times 1.2-1.9.

Cut 10-20%; bulk 5-15%.

Protein 1.6-2.2 g/kg.

Fat 20-35% of calories.

Carbs = remaining calories divided by 4.

FAQ

Can I track only calories?

Yes, but protein, satiety and training performance may suffer.

What about a plateau?

Check tracking and activity first, then adjust by 100-200 kcal.

Sources

Related calculators

Macro CalculatorEstimate BMR/TDEE with Mifflin-St Jeor, then get cut/maintain/bulk calories plus protein/fat/carbs split per meal.

More guides

How Much Protein per Day?Read guide