Protein Intake Calculator

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Find out exactly how much protein you need per day. This calculator uses evidence-based recommendations adjusted for your weight, activity level, and goal — whether you're trying to lose fat, maintain, or build muscle.

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Enter Your Measurements

Results

Daily Protein Target

143

g

Per Meal

48

g

Grams per Pound of Bodyweight

0.8

g/lb

Protein Calories

572

kcal

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Formula

Protein = Body Weight (kg) × 1.4–2.4 g/kg depending on activity and goal

How to Use This Calculator

How to Use

  1. 1

    Enter your current body weight.

  2. 2

    Select your typical activity level.

  3. 3

    Choose your primary goal.

  4. 4

    Enter how many meals you eat per day to see per-meal targets.

Frequently Asked Questions

Frequently Asked Questions

Is too much protein harmful?

For healthy adults, protein intakes up to 3g per kg bodyweight (1.4g/lb) appear safe. The kidney concerns from high protein apply mainly to people with pre-existing kidney disease, not healthy individuals.

Does protein timing matter?

Distribution matters more than timing. Spreading protein across 3-5 meals (30-40g each) maximizes muscle protein synthesis better than front- or back-loading all protein in 1-2 meals.
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Macros for Weight Loss: What Ratio Actually Works?

Learn the optimal macro ratios for fat loss: high protein, moderate carbs, adequate fat. Science-backed guidance on setting macros for sustainable weight loss.

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How Much Protein Do You Actually Need Per Day?

Evidence-based protein intake recommendations for weight loss, muscle building, and general health by goal.

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Supplement Guide for Beginners: What Actually Works

Evidence-based review of common supplements — creatine, protein powder, caffeine, and more — with honest effectiveness ratings.

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How to Calculate Macros for Muscle Building

Step-by-step guide to calculating macronutrient targets for muscle gain — protein, carb, and fat targets with example calculations for different body weights.

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Beginner's Guide to Workout Nutrition: What to Eat Before and After the Gym

Evidence-based nutrition strategies for gym beginners — what to eat before and after workouts, protein timing, and how to fuel your training for maximum results.

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Protein Powder Guide: Types, When to Use Them, and What to Look For

A practical guide to protein powder types — whey, casein, plant-based, egg — what the research says, when to use each, and how to choose a quality product.

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Cutting Phase Guide: How to Lose Fat While Keeping Muscle

A complete guide to the cutting phase — how to set up your calorie deficit, maintain training intensity, keep muscle while losing fat, and manage hunger.

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Meal Prep Guide: How to Prep a Week of Healthy Food in 2 Hours

A practical system for weekly meal prep — what to prep, storage guidelines, which foods hold up best, and how to build a sustainable routine that actually saves time.

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How Much Protein Do You Need to Build Muscle?

Evidence-based guide to protein intake for muscle growth, covering daily targets, timing, sources, and what the research actually shows.

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Macro Tracking for Beginners: How to Count Macros and Why It Works

A beginner's guide to tracking macronutrients — what macros are, how to set targets, and how to track them without it taking over your life.

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Strength Training Basics: How to Build Muscle and Get Stronger

A beginner's guide to the fundamentals of strength training — progressive overload, key lifts, programming, and how to structure your first training plan.

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Calorie Surplus for Muscle Building: How Much to Eat to Gain Muscle

How to calculate the right calorie surplus for building muscle without excessive fat gain — lean bulking vs. traditional bulking with realistic expectations.

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About This Calculator

This calculator uses the formula: Protein = Body Weight (kg) × 1.4–2.4 g/kg depending on activity and goal. All calculations follow industry-standard methods. Results are estimates — always verify with a licensed professional for structural or code-compliant work.

Built and maintained by the CalcSmart team. Last updated March 2026.

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