Size chart
Tea Collection baby size chart
Tea Collection publishes 10 baby and toddler sizes, Newborn to 4T, by weight and height. Checked against teacollection.com on October 4, 2026.
Size chart
- Newborn5 to 8 lb
- 0-3M8 to 11 lb
- 3-6M11 to 15 lb
- 6-9M15 to 18 lb
- 9-12M18 to 22 lb
- 12-18M22 to 27 lb
- 18-24M27 to 30 lb
- 2T30 to 33 lb
- 3T33 to 36 lb
- 4T36 to 40 lb
Weight in lb, exactly as Tea Collection publishes it.
Does Tea Collection run small or large?
True to sizeAcross 10 size labels that other brands also use, Tea Collection's published ranges sit close to the middle of the pack. The same label covers about the same baby.
Based on published size charts compared with other brands. This is not a fit review.
What a typical baby wears in Tea Collection
For a baby in the middle of the WHO growth chart, with room to grow. Your baby's own measurements give a closer answer in the calculator below.
| Age | Typical weight | Typical length | Tea Collection size |
|---|---|---|---|
| Birth | 7.3 lb | 19.5 in | Newborn |
| 3 months | 13.5 lb | 23.9 in | 3-6M |
| 6 months | 16.8 lb | 26.2 in | 6-9M |
| 9 months | 18.9 lb | 28 in | 9-12M |
| 12 months | 20.5 lb | 29.5 in | 9-12M |
| 18 months | 23.3 lb | 32.1 in | 12-18M |
| 2 years | 26.1 lb | 34 in | 2T |
| 3 years | 31.1 lb | 37.6 in | 3T |
The chart as published
The original wording from Tea Collection's chart, size by size.
| Size | Weight | Height or length | Age |
|---|---|---|---|
| NB | 5 - 8 lbs | 17 - 20 in | Newborn |
| 0-3M | 8 - 11 lbs | 20 - 24 in | 0-3 MONTHS |
| 3-6M | 11 - 15 lbs | 24 - 27 in | 3-6 MONTHS |
| 6-9M | 15 - 18 lbs | 27 - 29 in | 6-9 MONTHS |
| 9-12M | 18 - 22 lbs | 29 - 30.5 in | 9-12 MONTHS |
| 12-18M | 22 - 27 lbs | 30.5 - 33 in | 12-18 MONTHS |
| 18-24M | 27 - 30 lbs | 33 - 35 in | 18-24 MONTHS |
| 2T/2 | 30 - 33 lbs | 33 - 35 in | 2 YEARS |
| 3T/3 | 33 - 36 lbs | 35 - 38 in | 3 YEARS |
| 4T/4 | 36 - 40 lbs | 38 - 41 in | 4 YEARS |
Notes on this chart. Merges the brand's newborn and baby charts; sizes that appear in both agree. 18-24M and 2T/2 share the same published height (33 - 35 in).
Sources
- Brand's own site: https://teacollection.com/pages/size-chart
Retrieved October 4, 2026. Brands update their charts, so check the brand's page before a big purchase. This site is not affiliated with Tea Collection.
Calculator
What Tea Collection size on your date?
Start with a birth or due date
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