Get your exact daily protein target in seconds — 3 personalized tiers based on your weight, activity level, and training experience.
🏋️ Muscle Gain Protein Calculator
Your personalized protein targets for muscle gain
Protein Cheat Sheet
Quick reference for daily protein targets based on your goal and training level. Multiply by your body weight.
| Goal / Experience | g per kg body weight | g per lb body weight | Example (80kg / 176lb) |
|---|---|---|---|
| Muscle Gain – Minimum (Beginner) | 1.6 g/kg | 0.73 g/lb | 128g / day |
| Muscle Gain – Recommended Best | 2.0 g/kg | 0.91 g/lb | 160g / day |
| Muscle Gain – High (Advanced / Hardgainer) | 2.2 g/kg | 1.0 g/lb | 176g / day |
| Maintain Muscle | 1.2–1.6 g/kg | 0.55–0.73 g/lb | 96–128g / day |
| Fat Loss (preserve muscle) | 2.0–2.4 g/kg | 0.91–1.09 g/lb | 160–192g / day |
How Protein Builds Muscle
Understanding the science helps you use your protein targets more effectively.
Muscle Protein Synthesis (MPS)
Every time you lift weights, you create microscopic tears in your muscle fibers. Your body repairs these tears using amino acids from dietary protein — and rebuilds the fibers slightly thicker and stronger. This process is called Muscle Protein Synthesis (MPS).
For net muscle growth to occur, MPS must consistently exceed Muscle Protein Breakdown (MPB). Eating sufficient protein ensures your body has the raw materials to tip this balance in your favor — especially in the hours following a workout.
The Role of Leucine
Not all amino acids contribute equally to muscle building. Leucine, a branched-chain amino acid (BCAA), acts as the direct trigger for MPS. Research consistently shows that a meal needs to deliver 2.5–3g of leucine to fully activate the anabolic response.
Animal proteins — chicken, beef, eggs, whey — are rich in leucine. A single 40g serving of chicken breast or one scoop of whey protein comfortably hits this threshold. Plant-protein sources typically have lower leucine concentrations, which is why vegans and vegetarians often benefit from targeting the higher end of the protein range (2.0–2.2g/kg).
Why Protein Timing Matters
While total daily intake is the most important factor, how you distribute your protein throughout the day has a meaningful impact on muscle gain. Your body can only use a finite amount of protein for MPS in any given meal before the signal switches off.
Spreading protein across 4–5 meals, each containing 30–50g, keeps MPS elevated multiple times per day — compared to front-loading all your protein into one or two large meals.
Best Protein Sources for Muscle Gain
Prioritize high-leucine, complete proteins. Quality matters as much as quantity.
| Food | Protein per 100g | Leucine | Best For |
|---|---|---|---|
| Chicken Breast | 31g | 2.5g/100g | Lean bulk, daily staple |
| Whey Protein | 25g/scoop | Highest of all | Post-workout, fast absorption |
| Eggs (whole) | 13g | 1.1g/100g | Breakfast, hormone support |
| Lean Beef (95%) | 26g | 2.1g/100g | Creatine + iron + protein |
| Salmon | 25g | 1.8g/100g | Omega-3s + complete protein |
| Greek Yogurt | 10g | Slow casein | Pre-bed snack, gut health |
| Cottage Cheese | 11g | Slow casein | Overnight protein |
| Tempeh | 19g | Low | Complete plant protein |
| Pea + Rice Protein (blend) | 24g/scoop | Medium | Vegan complete amino profile |
| Tuna (canned) | 29g | 2.2g/100g | Budget-friendly lean protein |
5 Protein Myths That Kill Your Gains
Don’t let bad advice slow you down.
More protein = more muscle
Muscle protein synthesis plateaus around 2.2g/kg. Eating triple your target doesn’t triple your gains — excess protein is oxidized for energy.
High protein damages your kidneys
In healthy adults, intakes of 3.0g/kg have shown no adverse kidney effects in research. This concern applies only to those with pre-existing renal disease.
Your body can only absorb 30g per meal
Your body absorbs all the protein you eat. The limit isn’t absorption — it’s how much is used for MPS per meal (~30–50g). The rest isn’t wasted, it’s used for other functions.
Timing doesn’t matter, only total intake
Total daily intake is the primary driver, but spreading protein across 4–5 meals activates MPS more frequently than eating the same total in 1–2 sittings.
Plant proteins are useless for muscle gain
Plant proteins work — but require strategic combining (pea + rice) and a higher total intake (2.0–2.2g/kg) to match the leucine delivery of animal proteins.
Frequently Asked Questions
Scientific References
- Morton RW, et al. (2018). A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength in healthy adults. British Journal of Sports Medicine, 52(6), 376–384. PubMed →
- Stokes T, et al. (2018). Recent Perspectives Regarding the Role of Dietary Protein for the Promotion of Muscle Hypertrophy with Resistance Exercise Training. Nutrients, 10(2), 180. PubMed →
- Jäger R, et al. (2017). International Society of Sports Nutrition Position Stand: protein and exercise. Journal of the International Society of Sports Nutrition, 14, 20. PubMed →
- Phillips SM & Van Loon LJC. (2011). Dietary protein for athletes: From requirements to optimum adaptation. Journal of Sports Sciences, 29 Suppl 1, S29–38. PubMed →
- Churchward-Venne TA, et al. (2012). Supplementation of a suboptimal protein dose with leucine or essential amino acids: effects on myofibrillar protein synthesis. Journal of Physiology, 590(11), 2751–2765. PubMed →
Medical Disclaimer
Results are estimates only. This tool is for informational and educational purposes and does not constitute medical advice. Individual needs vary based on health status, age, and other factors. Always consult a qualified healthcare professional before making changes to your diet or nutrition plan.
