Macro Calculator

Calculate your daily macronutrient breakdown in grams based on your calorie target and preferred ratios.

Daily Calories Protein (%) Carbs (%) Fat (%) Calculate

About Macro Calculator

Calculate your daily macronutrient breakdown in grams based on your calorie target and preferred ratios.

Formula

Grams = (Calories × %) / Cal-per-gram

Example

2,500 cal at 30/40/30 → 188g protein, 250g carbs, 83g fat.

How to Use

Enter your values in the fields above and click "Calculate" to get instant results. All calculations happen in your browser — nothing is sent to any server.

Frequently Asked Questions

What is Macro Calculator?
Calculate your daily macronutrient breakdown in grams based on your calorie target and preferred ratios.

What formula does this use?
This calculator uses: Grams = (Calories × %) / Cal-per-gram

Is this calculator free?
Yes! All calculators on CalcNest AI are 100% free with no account required.

Is my data safe?
Absolutely. All calculations run locally in your browser. We never store or transmit your input data.

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