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Home > Life with Baby > Normal Growth

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.

Would you like to have this calculator on your PDA? Click here for more information.

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)]

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

Kids Growth Chart Percentiles Calculator (height and weight for birth to age 20, body mass index for age 2-20) from About.com. These calculators don't say which growth charts are used for the calculations.

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

 

Page last modified: 04/09/2006
Written: 09/21/2005

Disclaimer: All material on this website is provided for educational purposes only, although every effort is made to provide accurate and up-to-date information. Unless otherwise noted, the articles at this website are not written by doctors or other health care professionals. If you are concerned about your health, or that of your child, consult with your health care provider regarding the advisability of any opinions or recommendations with respect to your individual situation.
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