baby weight by monthbaby weight charthow much should my baby weighbaby growth milestones

Baby Weight Month by Month

Tracking your baby's weight is one of the most important ways to ensure they're growing healthily. During the first year of life, babies experience extraordinary growth, approximately tripling their birth weight.

Average Birth Weight

The average weight of a full-term newborn is approximately 3.3 kg (7.3 lb) for boys and 3.2 kg (7.1 lb) for girls. However, a normal range spans from 2.5 kg to 4.5 kg.

Average Weight Table by Month (Boys)

| Age | Average Weight | Normal Range |

|-----|---------------|--------------|

| Birth | 3.3 kg (7.3 lb) | 2.5 - 4.5 kg |

| 1 month | 4.5 kg (9.9 lb) | 3.4 - 5.8 kg |

| 2 months | 5.6 kg (12.3 lb) | 4.3 - 7.1 kg |

| 3 months | 6.4 kg (14.1 lb) | 5.0 - 8.0 kg |

| 4 months | 7.0 kg (15.4 lb) | 5.6 - 8.7 kg |

| 6 months | 7.9 kg (17.4 lb) | 6.4 - 9.8 kg |

| 9 months | 8.9 kg (19.6 lb) | 7.1 - 11.0 kg |

| 12 months | 9.6 kg (21.2 lb) | 7.7 - 12.0 kg |

Weight Gain Patterns

First weeks: It's normal for babies to lose between 5% and 10% of their birth weight during the first few days. Most regain their birth weight between 10 and 14 days of life.

First trimester (0-3 months): Babies gain approximately 150-200 grams per week. This is the fastest growth period.

Second trimester (3-6 months): Weight gain slows slightly to about 100-150 grams per week.

Second half (6-12 months): Growth continues to decelerate. Babies gain approximately 70-100 grams per week.

Factors Influencing Weight

Genetics: Taller and larger parents tend to have larger babies.
Feeding: Breastfed and formula-fed babies may have slightly different growth patterns.
Sex: Boys tend to be slightly heavier than girls.
Gestational age: Premature babies may take longer to reach weight milestones.
Overall health: Illnesses can temporarily affect weight gain.