Why this result matters
Fast macro planning for people who need grams, not guesswork. Enter size, age, activity, and a goal — get a calorie target plus protein, carbs, and fat you can meal-plan around the same day.
Useful for maintenance, cutting, and bulking when you want a clear split without building a spreadsheet.
Formula and method
We estimate resting metabolism with the Mifflin–St Jeor equation, multiply by an activity factor for TDEE (maintenance), then apply a goal adjustment (cut −500 kcal, maintain ±0, bulk +300 kcal). Your chosen macro style splits those calories into grams using fixed ratios.
- Balanced: 30% protein / 40% carbs / 30% fat
- High protein: 40% protein / 30% carbs / 30% fat
- Low carb: 35% protein / 25% carbs / 40% fat
Example
A moderately active 30-year-old man at 90 kg / 180 cm on maintain + Balanced lands near ~2,914 kcal with about 219 g protein, 291 g carbs, and 97 g fat — a practical starting framework to build meals around, then adjust with real-world progress.
FAQ
What does a macro calculator do?
A macro calculator takes an estimated calorie target and splits it into daily protein, carbohydrate, and fat goals. That makes it easier to meal plan for cutting, maintenance, or bulking.
Which macro split is best?
There is no single best split for everyone. A useful starting point depends on the goal, training style, appetite, and preference — which is why this tool offers Balanced, High protein, and Low carb presets.
Why do people track macros?
Tracking macros can make calorie targets easier to follow by giving structure to food choices, especially when protein, carbs, or fat matter for performance or satiety.
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Disclaimer: Estimates only — not medical advice. Individual needs vary with training, health conditions, and preference. Consult a qualified professional for personalised nutrition.
