Baby weights - what is normal?


The World Health Organisation are the best reference for growth in the first 2 years as they reflect the growth of healthy breastfed babies.

The general guidelines for weight and growth measurements are:

  • a baby loses 5-10% of birth weight in the first week and regains this by 2 weeks
  • birth weight is doubled by 4 months and tripled by 13 months in boys and 15 months in girls

  • birth length increases 1.5 times in 12 months
  • birth head circumference increases by about 11 cm in 12 months

However, all babies grow differently and these are just general guidelines. If you are concerned about your baby's growth, contact your LMC/GP for a thorough assessment of your baby's general health and wellbeing.