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    Macro CalculatorFree Online Health Tool

    Macro Calculator is a free online health tool. Calculate your optimal daily protein, carbohydrate, and fat intake based on your goals. Free macronutrient calculator.

    Your Details
    Enter your information
    Your Daily Macros
    Recommended intake

    Daily Calories

    2633

    Protein165g (658 cal)
    Carbohydrates329g (1317 cal)
    Fat73g (658 cal)
    100% Private100% Private
    InstantInstant
    Any DeviceAny Device
    Free ForeverFree Forever
    How to useHow to use & Tips

    Steps

    1. 1Enter your gender, age, weight, and height
    2. 2Select your activity level
    3. 3Choose your goal (lose weight, maintain, or build muscle)
    4. 4View your daily calorie target and macro breakdown

    Use Cases

    • -Plan a weight loss diet with proper nutrition
    • -Optimize nutrition for muscle building
    • -Maintain current weight with balanced macros
    • -Prepare for athletic competition
    • -Track daily nutritional intake

    About Macro Calculator

    Everything you need to know about this tool and how to get the most out of it.

    What is Macro Calculator?

    What is Macro Calculator?

    A macro calculator determines your optimal daily intake of protein, carbohydrates, and fat (macronutrients) based on your body stats, activity level, and fitness goal. It first calculates your Total Daily Energy Expenditure (TDEE) then splits calories into the three macros.
    How Macro Calculator Works

    How Macro Calculator Works

    Enter your gender, age, weight, height, and activity level. Select your goal (lose weight, maintain, or build muscle). The calculator uses the Mifflin-St Jeor formula to find your BMR, multiplies by your activity factor for TDEE, adjusts for your goal, then splits calories into protein, carbs, and fat ratios.
    Why Use Macro Calculator?

    Why Use Macro Calculator?

    Tracking macros is more effective than just counting calories because it ensures you get the right balance of nutrients for your goal. High protein preserves muscle during weight loss; adequate carbs fuel workouts; healthy fats support hormones.
    Tips

    Tips & Best Practices

    • 1Protein: aim for 1.6-2.2g per kg of body weight for muscle building
    • 2Adjust carbs and fat based on personal preference — both can work for weight loss
    • 3Track macros for 2-4 weeks before adjusting — consistency matters more than perfection

    Frequently Asked Questions