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Cutting Macro & Calorie Deficit Calculator

Drop body fat fast while keeping your hard-earned muscle.

Enter Body Stats

Biological Sex
Optimal TargetMifflin-St Jeor Science Standard
2,126kcal / day

-20% deficit structured to peel off fat while preserving lean tissue mass.

Daily Macronutrient Target

Protein
180g
720 kcal
Fats
60g
540 kcal
Carbs
217g
868 kcal
Basal Metabolic Rate (BMR)
1714 kcal
Total Expenditure (TDEE)
2657 kcal
Science Backed

How This Calculation Works

The primary challenge of a cut is preserving strength and muscle. Maintain high protein (up to 2.4g/kg) and moderate fats with a 400–500 kcal deficit.

Dynamic High-Protein Ratio: Scaled specifically by bodyweight to prevent lean muscle cannibalization during caloric deficit phases.
Mifflin-St Jeor Accuracy: Internationally validated formula accounting for sex, height, weight, and specific activity factors.

Frequently Asked Questions

What is a safe weekly weight loss rate during a cut?

Aim to lose 0.5% to 1% of your total body weight per week to avoid muscle loss and metabolic slowdown.