What is a good macro ratio?

A common balanced split is 40% carbs, 30% protein, 30% fat, but it varies by goal.

Do I need to hit macros exactly?

Getting within 5-10 grams of each target is close enough for most people.

How do macros differ for weight loss vs muscle gain?

Weight loss often uses higher protein; muscle gain requires more carbs and a calorie surplus.

How to Calculate Macronutrients

A macro calculator breaks your daily calories into grams of protein, carbohydrates, and fat. Balancing macros helps optimize performance, body composition, and health.

The Formula

Grams = (TDEE x Macro Percentage) / Calories per Gram

Where:

GramsMacro Grams — Daily grams of each macronutrient

TDEETotal Calories — Your daily calorie target

PctMacro Percentage — Desired split for each macro

Cal/gCalories per Gram — Protein=4, Carbs=4, Fat=9

Step-by-Step Example

Here's how to calculate macronutrients step by step:

1Set calorie target: Determine your daily calorie goal from your TDEE calculation.
2Choose macro split: Select percentages (e.g., 40% carbs, 30% protein, 30% fat).
3Calculate grams: Multiply calories by each percentage, then divide by 4 (protein/carbs) or 9 (fat).

Following these 3 steps gives you the final macronutrients value.

Skip the Math

On 2,000 calories with a 40/30/30 split: 200g carbs (800 cal), 150g protein (600 cal), 67g fat (600 cal).

Use the Free Calculator

Why You Need This Calculation

Tracking macros ensures you get the right balance of nutrients to support your fitness and health goals.

Common Mistakes

Only counting calories without macro balance.

The source of calories matters as much as the total for body composition.

Setting protein too low for muscle building.

Aim for 0.7-1g of protein per pound of body weight for muscle growth.

Forgetting alcohol has 7 calories per gram.

Count alcohol calories separately; they do not fit neatly into the three macros.