Size chart
Magnetic Me baby size chart
Magnetic Me publishes 11 baby and toddler sizes, Preemie to 4T, by weight and height. Checked against magneticme.com on October 4, 2026.
Size chart
- Preemieup to 5 lb
- Newborn5 to 8 lb
- 0-3M8 to 12 lb
- 3-6M12 to 16 lb
- 6-9M16 to 19 lb
- 9-12M19 to 22 lb
- 12-18M22 to 27 lb
- 18-24M27 to 30 lb
- 2T28 to 30 lb
- 3T20 to 33 lb
- 4T33 to 36 lb
Weight in lb, exactly as Magnetic Me publishes it.
Does Magnetic Me run small or large?
True to sizeAcross 10 size labels that other brands also use, Magnetic Me'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 Magnetic Me
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 | Magnetic Me 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 | 6-9M |
| 12 months | 20.5 lb | 29.5 in | 9-12M |
| 18 months | 23.3 lb | 32.1 in | 18-24M |
| 2 years | 26.1 lb | 34 in | 2T |
| 3 years | 31.1 lb | 37.6 in | 4T |
The chart as published
The original wording from Magnetic Me's chart, size by size.
| Size | Weight | Height or length | Age |
|---|---|---|---|
| PRE (preemie) | Up to 5 lb | Up to 18" | Not published |
| NB (newborn) | 5-8 lb | Up to 21" | Not published |
| 0-3M | 8-12 lb | 21.5-23" | Not published |
| 3-6M | 12-16 lb | 23.5-26" | Not published |
| 6-9M | 16-19 lb | 26.5-28" | Not published |
| 9-12M | 19-22 lb | 28.5-30" | Not published |
| 12-18M | 22-27 lb | 30.5-32" | Not published |
| 18-24M | 27 - 30 lb | 32.5-34" | Not published |
| 2T | 28 - 30 lb | 34.5 - 35" | Not published |
| 3T | 20 - 33 lb | 35.5 - 37" | Not published |
| 4T | 33 - 36 lb | 37.5 - 40" | Not published |
Notes on this chart. The brand publishes its charts as images on its size chart page. One value is kept exactly as printed: 3T weight is listed as 20 - 33 lb, which starts below the 2T range. The chart notes a snug fit for footies and coveralls from 9-12M up, and for pajama sets from 2T up.
Sources
- Brand's own site: https://magneticme.com/pages/size-chart
- Brand's own site: https://cdn.shopify.com/s/files/1/0041/8034/4945/files/SIZE_GUIDE_Baby.png?v=1773089863
- Brand's own site: https://cdn.shopify.com/s/files/1/0041/8034/4945/files/SIZE_GUIDE_Toddler.png?v=1773089865
Retrieved October 4, 2026. Brands update their charts, so check the brand's page before a big purchase. This site is not affiliated with Magnetic Me.
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