Toolzie

Macro & Calorie Goal Estimator

How to Use the Macro Calculator

Enter age, gender, height, weight, activity. Pick goal. Get TDEE and daily protein/carbs/fat.

Know macro targets for fitness goals. Personalized based on body and activity.

Frequently Asked Questions

Calculation?

Mifflin-St Jeor equation for BMR adjusted for activity and goal.

TDEE?

Total daily calories burned (basal plus activity).

Loss ratio?

Common: 30-35% protein, 25-30% fat, 35-45% carbs.

Follow exactly?

Guidelines only; adjust based on results; consult dietitian.

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About This Tool

Calculate your daily calorie and macronutrient targets (protein, carbs, and fat) with the Toolzie Macro Calculator. Based on your age, height, weight, activity level, and fitness goal — whether cutting, maintaining, or bulking.

How to Use

  1. Enter your sex, age, height, and weight.
  2. Select your activity level (sedentary to very active).
  3. Choose your goal: lose weight, maintain, or gain muscle.
  4. See your recommended daily calories and protein/carb/fat breakdown.

Frequently Asked Questions

How accurate is the macro calculator?

Results are based on the Mifflin-St Jeor equation, widely considered the most accurate formula for estimating daily calorie needs.

What is a macro split?

A macro split defines the percentage of calories from protein, carbohydrates, and fat. A common split is 40% carbs, 30% protein, 30% fat.

How much protein do I need to build muscle?

Most research supports 1.6–2.2g of protein per kg of body weight per day for muscle growth.

Should I hit my macros every day?

Consistency over the week matters more than hitting exact targets every single day. Aim for your weekly average.