Simple Macronutrient Calculator

Fuel Your Body, Empower Your Life

What if the secret to feeling your best—more energy, sharper focus, better workouts — wasn’t hidden in the latest diet trend, but in understanding your own unique nutritional needs?

Your macronutrients—proteins, fats, and carbohydrates—are the building blocks of a healthy, strong, and energized body.

But everyone’s ideal balance is different.

In just a few minutes, this macronutrient calculator can help you uncover your personalized nutrition requirements.

It’s not about restrictions or one-size-fits-all formulas — it’s about giving your body what it needs to thrive.

Ready to take the guesswork out of nutrition and step into your healthiest self?

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Invest a few minutes in YOU!

Macronutrient Calculator

Calculator

Age Guidelines

Weight:

Weight in pounds (lbs)

Height:

Height in inches (in)

Age (years):

Gender:

Activity Level:

Goal:

Your Daily Macronutrient Needs:

Total Calories: kcal

Protein: g (% of calories)

Carbohydrates: g (% of calories)

Fat: g (% of calories)

These values are adjusted based on your age group’s specific requirements. Remember, these are general guidelines and individual needs may vary.

Age Group	Protein	Carbohydrates	Fat	Special Considerations
Children (4-8)	15-25%	45-65%	25-35%	Higher protein needs for growth
Adolescents (9-18)	15-30%	45-60%	25-35%	Increased energy needs during growth spurts
Adults (19-50)	15-35%	45-65%	20-35%	Balance based on activity level
Older Adults (51+)	15-35%	45-65%	20-35%	May need more protein to preserve muscle mass
Pregnant/Nursing	20-30%	45-65%	20-35%	Increased overall caloric needs

Macronutrient Calculator Key Features:

Age-specific calculations - Automatically adjusts macronutrient ratios based on different age groups
Comprehensive inputs - Weight, height, age, gender, activity level, and goals
Detailed results - Displays calories, protein, carbs, and fat in both grams and percentages
Mobile-responsive design - Works on all screen sizes
Informational tab - Includes a reference table showing macronutrient guidelines for different age groups

How It Works:

Uses the Mifflin-St Jeor equation to calculate basal metabolic rate
Adjusts for activity level to determine total daily energy expenditure
Modifies calorie targets based on weight goals (maintain/lose/gain)
Customizes macronutrient ratios based on the user's age group
Ensures safe minimum calorie thresholds

INVEST A FEW MORE MINUTES IN YOU

HEALTH ASSESSMENT

The Health Assessment* that The Shaklee Corporation offers free of charge is an even more personalized review of your unique self.

There are more questions and it will take just a few more minutes, but you will get some in-depth health information based on the way you personally answer the questions.

You can save the information you get, with no obligation to pay for it or purchase anything. You can also have the results emailed to you.

If you are interested in any supplements that help you bridge the gap of what you PERSONALLY do not get in your foods, that information will be provided as well.

It can feel so good to take some time and give your health and your body that priority it deserves.

Remember, you only have one house to live in.

Click the text or the image to get started.

SHAKLEE HEALTH ASSESSMENT: MEOLOGY

Let us know if you have any questions, need help with the content on this page, or you would like to discuss anything you see here on the blog.

The natural nutrition brand we recommend here on the blog are products we have personally used for the past 43+ years. We are not medical professionals. We are on a personal health journey to live younger, energized and healthy longer.

*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.