Protein Calculator

Protein is essential for muscle tissue repair, enzyme synthesis, immune function, and satiety during weight loss.

BMR
1,659 kcal
Calories at total rest
Maintenance (TDEE)
2,571 kcal
Calories to stay the same weight
Your target
2,571 kcal/day
Adjusted for your goal
SUGGESTED DAILY MACROS
Protein20%
126g
Fat25%
71g
Carbs55%
356g

Estimates only — individual metabolism varies. Consult a doctor or registered dietitian before making major dietary changes.

Today's Food Log

Search foods, select unit (grams, slices, pieces, cups, oz...), and track your daily macros.

TOOLS THAT MAKE HITTING YOUR TARGET EASIER
Meal prep containers
Portion-controlled sets that make hitting your target calories easier.
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Kitchen food scale
Accurate gram measurements — the single biggest upgrade for calorie tracking.
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Whey / plant protein powder
A fast way to hit your daily protein target from the macros below.
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⚕️MEDICAL & YMYL DISCLAIMERReviewed August 2026

Educational Purpose Only: The calculations, formulas, and estimates provided by this calorie & nutrition calculator are intended solely for educational, research, and informational purposes. They do not constitute medical advice, diagnosis, or personalized treatment plans.

Always consult a qualified healthcare professional, physician, or registered dietitian before making changes to your diet, exercise regimen, calorie intake, or pregnancy care plan. Never disregard or delay professional medical advice because of something you read on this website.

SCIENTIFIC FORMULA & METHODOLOGY
ISSN & ACSM Body-Weight Protein Standards
General Health: 0.8g per kg body weight
Active / Endurance: 1.2g - 1.4g per kg body weight
Muscle Gain / Strength: 1.6g - 2.2g per kg body weight (0.7g - 1.0g per lb)

Scientific consensus from the International Society of Sports Nutrition (ISSN) recommends 1.4–2.2 grams of protein per kilogram of body weight for active and resistance-trained individuals.

Clinical Limitations & Considerations

Individuals with pre-existing kidney disease or renal impairment should consult their nephrologist before increasing dietary protein intake.

Scientific References & Literature

  • Morton, R. W., 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.

Frequently Asked Questions

How much protein do I need to build muscle?

Research shows optimal muscle protein synthesis is achieved with 1.6 to 2.2 grams of protein per kilogram of body weight (0.7 to 1.0 g/lb) per day when combined with progressive resistance training.