Protein Calculator

This protein calculator can calculate the daily protein intake you need to maintain good health. It includes the daily protein needs of children, people who are physically active, and pregnant and breastfeeding women.

Age

Your age in years. Adults only (18+).

Gender

Used for calorie estimation (Mifflin St Jeor).

Height

Enter height and choose unit. For ft + in, first box = feet, second = inches.

Weight

Enter body weight and choose unit.

Activity

Used to estimate daily calories (for CDC 10–35% protein range).

Result

American Dietetic Association (ADA):

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The Centers for Disease Control and Prevention (CDC):

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World Health Organization safe lower limit:

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Estimates for healthy adults. Individual needs vary (e.g., pregnancy, illness, athletes). Consult a registered dietitian for personalized advice.