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Breastfeeding Calorie Calculator with Macronutrients

Calorie Calculator










Daily calories needed to maintain your weight:


Daily calories to lose weight safely:


Minimum daily calories to maintain milk supply:


Macros for Maintaining Weight:

Carbohydrates: 0g

Proteins: 0g

Fats: 0g

Macros for Losing Weight:

Carbohydrates: 0g

Proteins: 0g

Fats: 0g
This Calorie Calculator is based on the Mifflin-St Jeor Equation with adjustments made for breastfeeding and pregnancy. The results are based on an estimated average.
For women: BMR = 10 × weight (kg) + 6.25 × height (cm) - 5 × age (y) - 161 * Activity

For Breastfeeding, an average of 500 extra calories (exclusive breastfeeding),400 extra calories (mostly breastfeeding), 250 extra calories (partial breastfeeding) or 0 extra calories (no breastfeeding) is added.

For Pregnancy, an average of 450 extra calories (third trimester), 700 extra calories (third trimester twins), 340 extra calories (second semester), 50 extra calories (first semester) or 0 extra calories (not pregnant) is added.

Disclaimer: All calorie values are estimates and do not guarantee weight loss, weight gain, an adequate milk supply or sufficient calorie supply while pregnant or breastfeeding. We are not responsible for any loss of milk supply and make no claims to increasing milk supply. Please consult a medical professional to ensure the appropriate amount of calories, especially if you are breastfeeding and pregnant.

If you are curious about how many calories you should be consuming while breastfeeding, especially if you are wanting to lose weight while breastfeeding, you are in the right place. This easy-to-use breastfeeding calculator takes into account the unique nutritional requirements of a breastfeeding woman and provides you with calorie and macronutrient goals.

This calculator is based on Mifflin-St Jeor Equation with adjustments made for breastfeeding and pregnancy. The results are based on an estimated average.

How to Use This Calculator

This calculator is very simple to use.

You simply need to add in your:

  • Age
  • Height
  • Weight
  • Typical activity level
  • Breastfeeding Frequency
  • If you are pregnant or not

After this, you will be given three numbers for calories:

  • Daily calories needed to maintain your weight
  • Daily calories to lose weight safely
  • Minimum daily calories to maintain milk supply

And two categories for macros:

  • Macros for Maintaining Weight (carbs, fat, protein)
  • Macros for Losing Weight (carbs, fat, protein)

I recommend writing these down and inputting them into your favorite nutrition track, such as My Fitness Pal. Remember – this is just a starting point and should be adjusted as needed. Working with a nutritionist can be very helpful.

Wondering if your milk supply is normal? Click here for The Breastfeeding Mama's Free Milk Supply Quiz!
calorie calculator for breastfeeding moms

Hi! 👋 I’m Katie, an International Board Certified Lactation Consultant I have helped thousands of moms worldwide navigate their breastfeeding journey since 2015. I can’t wait to help you! Consider checking out my 1:1 lactation support services or enrolling in one of our online breastfeeding courses today!

My Experience

When I was breastfeeding, my number one goal was to provide my sons’ with the nutrition they needed. However, it was still important for me to healthily lose weight. I found that calculating the amount of macronutrients I needed – as well as calories – gave me a good goal as I made nutrition choices throughout the day.

As I work with breastfeeding women on a daily basis, I have found this method to work well for many new moms as they try and eat healthy and lose a little bit of weight while breastfeeding. This calculator is a great starting point for macro counting while breastfeeding.

Breastfeeding Meal Plan Bundle

Breastfeeding Meal Plan

So now you know how many calories and macros you want to aim for – but now what you should you eat?

Our 28-Day Breastfeeding Meal Plan is the perfect solution. Developed with a nutritionist and the specific needs of breastfeeding moms in mind, this meal plan has everything you need to feel great and eat well. It has the calorie AND macro count for every recipe!

Additional Resources:

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  1. I cannot get your calculator to calculate. I enter my information and everything remains at 0, any tips?

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