Fitness Blogs Team·May 1, 2026·6 min read·3 views
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Protein Intake Calculator: How Much Do You Need to Build Muscle?

Protein calculators dominate fitness trends. See what science says for sedentary adults, lifters, and fat-loss phases — with simple gram-per-kg targets.

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Protein Intake Calculator: How Much Do You Need to Build Muscle?

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More Protein Helps — Up to a Point

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Protein intake calculators usually ask for weight, goal, and activity level. Outputs range from 0.8 g/kg (minimum health) to 2.2 g/kg (advanced lifters in deficit).

For muscle gain, 1.6–2.0 g/kg per day is a well-supported range for most resistance-trained adults.

Spread protein across 3–5 meals with 25–40 g per sitting to maximize muscle protein synthesis for many users.

Plant-based eaters can hit targets with legumes, soy, seitan, and smart combinations — total daily grams matter most.

Very high protein is not magic. Training progression, sleep, and total calories still drive hypertrophy.

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