How to Set Calorie Targets for Weight Loss and Muscle Gain

Setting the right calorie target is the foundation of any effective nutrition plan. Targets that are too aggressive lead to muscle loss, metabolic slowdown, and burnout. Targets that are too conservative produce no results.

For fat loss: Subtract 300–500 calories from your TDEE (Total Daily Energy Expenditure). This creates a moderate deficit that produces roughly 0.25–0.5 kg of fat loss per week. The larger the deficit, the faster the weight loss — but also the greater the risk of muscle loss, hunger, and metabolic adaptation. Start at the conservative end (300 kcal deficit) and increase only if progress stalls after 3–4 weeks.

For muscle gain: Add 200–300 calories to your TDEE. A surplus larger than this primarily adds fat, not additional muscle. Pair with adequate protein (1.6–2.2 g per kg of body weight) and progressive resistance training. Expect 0.25–0.5 kg of weight gain per month, of which only a portion will be muscle.

Track and adjust: Weigh yourself daily under consistent conditions (morning, after bathroom, before eating) and track the weekly average. If your weekly average is not trending in the right direction after 3 weeks, adjust by 100–200 calories. Small adjustments compound over time.

Recalculate periodically: As you lose or gain weight, your TDEE changes. Recalculate every 5–10 kg of weight change. A person who loses 10 kg may burn 100–150 fewer calories per day at rest — eating the same amount that created the initial deficit may now be maintenance.