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Home » Infant Growth Calculators – Metric

Infant Growth Calculators – Metric

 

 

Many moms wonder if their baby is growing as expected. It may be helpful to use this calculator, together with the information in Average Weight Gain for Breastfed Babies, when analyzing your baby’s growth.

Directions: Fill in at least two rows (white columns only), then click on “calculate” to see the results.[Click here for English units (pounds, ounces, inches)]

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Weight Gain Calculator
Age Weight
in weeks* grams grams gained per week

* see the Age in Weeks Calculator

QUICK CALCULATOR>
Age in weeks
Birth Date [mm/dd/yyyy]
Current Date  (or any date)
[mm/dd/yyyy]
Age in weeks

QUICK REFERENCE
  Average Growth for Breastfed Babies*
Baby’s Age

 

(weeks)

Avg. Weight

Gain

 

(g/week)

Avg. Length

Gain

 

(cm/month)

0 – 17 170 2.5
17 – 26 113-142 1.0
26 – 52 57-113 1.27
* see Average
Weight Gain   for Breastfed Babies
for additional information
Length
Gain Calculator
Age Length
in weeks* cm cm
per month
* see the Age in Weeks Calculator

Other growth calculators

Growth Percentile Calculator (up to 36 months) from BabyCenter.com

Growth Calculators (body mass index, growth percentile, growth velocity percentile for age 2-18) from Genentech, manufacturer of human growth hormone products.

Kid’s Height Predictor from WebMD

Updated on February 8, 2018Filed Under: Growth & Development

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  • Home
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    • About
    • Translations
      ▼
      • Bulgarian
      • German
      • Portuguese
      • Russian
      • Spanish
    • Sponsors
      ▼
      • Become a sponsor
      • Previous Sponsor Posts
  • Hot Topics
    ▼
    • COVID-19
  • Pregnancy
    ▼
    • Preparing to Breastfeed
    • Breastfeeding when pregnant
  • Breastfeeding
    ▼
    • Got Milk?
    • What is Normal?
    • Can I Breastfeed if…?
      ▼
      • Lifestyle choices
      • Illness, Surgery & Medical Procedures
      • Medications & Vaccines
      • Herbs/natural treatments
      • Chemical exposure
    • Common Concerns
      ▼
      • Child Concerns
      • Mother’s Concerns
      • Finding Help
      • Legal issues
    • Pumping & Employment
      ▼
      • Pumping & supply
      • Feeding baby
      • Milk handling/storage
      • Employed moms
    • Advocacy
  • Ages & Stages
    ▼
    • Adoptive BF/ Relactation
    • Premature Infant
    • Newborn
      ▼
      • Breastfeeding Basics
      • Common Newborn Concerns
      • Newborn Challenges
    • Older Infant
    • After the First Year
    • Tandem Breastfeeding
    • Weaning
      ▼
      • Considering weaning
      • How to wean
  • Parenting
    ▼
    • Parenting FAQ
    • Nighttime parenting
    • Reviews
    • Fun
      ▼
      • Humor & Wisdom
      • Trivia
  • Health
    ▼
    • Baby’s Health
    • Growth & Development
    • Mom’s Health
    • Can I Breastfeed if…?
  • Nutrition
    ▼
    • Solid Foods
    • Mother’s Diet
    • Vitamins/ Supplements
    • Milk
  • Shop
    ▼
    • Support KellyMom – amazon portal
    • Free Handouts