Which macro split should I pick?

Balanced suits most people. Lower carb can help appetite and blood sugar for some. Higher carb suits endurance training. None is magic, so pick what fits your food preferences and energy.

Do I have to hit macros exactly?

No. Treat them as friendly targets. Getting reasonably close most days, especially on protein and total calories, is what matters.

Verified formulaLast reviewed July 2026

Macro Calculator

Turn your daily calories into grams of protein, carbs, and fat for your chosen approach.

Your details

Daily calories (kcal)

Approach

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A mathematical estimate based on validated equations, for education only. It is not a diagnostic tool.

The science

Macros are just the three nutrients that carry your calories: protein, carbohydrate, and fat. This calculator splits your daily calorie budget into grams of each, based on the approach you pick, so you have a clear, flexible target to build meals around instead of guessing.

The formula

Calories split by ratio; protein and carbs at 4 kcal/g, fat at 9 kcal/g

Sources

1
U.S. Dietary Guidelines for Americans (odphp.health.gov)
2
Acceptable Macronutrient Distribution Ranges, National Academies

Common questions

This tool is for education only and is not a diagnostic device. Consult a licensed clinician before making health decisions.