Health & Fitness100% Free Tool

Free Daily Protein Requirement Calculator Online

Calculate optimal daily protein intake in grams based on body weight, activity level, fitness goal, and whether you're vegetarian or non-vegetarian. — 100% free online utility, zero sign-up, zero paywalls, and private client-side processing.

100% Client-Side0ms Latency
Clinical Health & Anthropometrics
WHO Classification:Normal Healthy Weight
1618.525.030.040+
BMI Score22.9
Maintenance TDEE2281 kcal/day
Daily Protein Target126g / day

How It Works

1

Enter Body Weight

Input current body weight in kg or lbs.

2

Select Activity Level & Goal

Choose activity level and primary goal: muscle gain, fat loss, or maintenance.

3

View Protein Target

See daily protein requirement in grams and equivalent food quantities.

Frequently Asked Questions

RDA: 0.8g/kg for sedentary adults. For muscle building: 1.6–2.2g/kg. For weight loss with muscle retention: 2.2–3.0g/kg. Endurance athletes: 1.2–1.6g/kg.

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