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Macro Nutrient Calculator

Estimate daily protein, carbohydrate, and fat targets in grams based on your calorie goal and body weight. All calculations run locally in your browser—nothing is stored or sent to a server.

Set your daily macro targets

This calculator uses a simple approach: protein is based on grams per pound of body weight, fats are a fixed percentage of total calories, and carbs use the remaining calories.

Common ranges: 0.7–1.0 g per lb of body weight depending on goals and activity.
Many diets keep fats between 20–35% of total calories. Carbs will use the remaining calories.
Enter your calories, weight, and preferences, then tap “Calculate Macros”.

Disclaimer: This tool is for informational purposes only and does not replace advice from a doctor, dietitian, or other qualified professional.