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.
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