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Baby size chart, 0–24 months
Babies grow at different rates, so go by their measurements rather than their age: height first, then weight. Between two sizes, take the bigger one. Measurements are in centimetres and kilograms, with inches and pounds in brackets.
| Size | Height cm (in) | Weight kg (lb) | Chest cm (in) | Waist cm (in) |
|---|---|---|---|---|
| 0–3M | 56–62 (22–24.4 in) | 4–6 (8.8–13.2 lb) | 40–42 (15.5–16.5 in) | 40–42 (15.5–16.5 in) |
| 3–6M | 62–68 (24.4–26.8 in) | 6–8 (13.2–17.6 lb) | 42–44 (16.5–17.5 in) | 42–44 (16.5–17.5 in) |
| 6–12M | 68–80 (26.8–31.5 in) | 8–10 (17.6–22 lb) | 44–47 (17.5–18.5 in) | 44–46 (17.5–18 in) |
| 12–18M | 80–86 (31.5–33.9 in) | 10–12 (22–26.5 lb) | 47–49 (18.5–19.5 in) | 46–48 (18–19 in) |
| 18–24M | 86–92 (33.9–36.2 in) | 12–13.5 (26.5–29.8 lb) | 49–51 (19.5–20 in) | 48–50 (19–19.5 in) |
These are your child’s body measurements, not the garment’s: each size is made to fit a child of that height and weight. Not sure between two sizes? Ask us on WhatsApp before you order.
How to measure
- Height
Stand them straight against a wall without shoes, and measure from the floor to the top of the head. For babies, measure lying down, from the top of the head to the heel. Height is the most reliable guide.
- Chest
Measure around the fullest part of the chest, under the arms, keeping the tape level and comfortably loose.
- Waist
Measure around the natural waist, just above the belly button, without pulling the tape tight.
- For custom stitching
Also measure the length you’d like: from the top of the shoulder, next to the neck, down to the hem for a top; and from the waist down the side of the leg to the ankle for trousers.
- Go by height first: children of the same age can be very different sizes.
- If your child is between sizes, choose the larger size, so there is room to grow.
- For babies, weight helps too: a bigger newborn may be ready for 3–6 months straight away.
Quick answers
What size should I buy for a newborn?
Most newborns wear 0–3M, which is made for babies up to about 62 cm long and 6 kg. It will be a little roomy at first and then fit for the first weeks to months. A larger baby may be ready for 3–6M sooner.
Is 0–3 months the same as newborn size?
Not quite. Some brands also make a smaller “newborn” size for babies under about 56 cm. Our smallest size is 0–3M, which fits from about 56 cm.
Should I buy baby clothes a size bigger?
If your baby is near the top of a size, or you are buying for a few months ahead, yes. Babies grow fast in the first year, so the larger size gets more wear.
What size frock or outfit for a 6 month old baby?
For most 6-month-olds, 6–12M, which is made for babies about 68–80 cm long and 8–10 kg. A smaller 6-month-old, under about 68 cm and 8 kg, may still fit 3–6M. Go by length and weight rather than age.
What size does a 2 year old wear?
Our largest size is 18–24M, made for children about 86–92 cm tall and 12–13.5 kg, so it fits many children up to their second birthday. A taller two-year-old needs 2–3Y, which we don’t stock.
How long will my baby stay in each size?
Roughly the months on the label, but babies grow fastest in the first months, so many move from 0–3M to 3–6M sooner. Check height and weight against the chart every few weeks rather than waiting for a birthday.
What age is 12–18M?
12–18M is for babies aged about one to one and a half, and 18–24M for about one and a half to two. After that, sizes are given in years, starting with 2–3Y.
Still not sure which size?
Send us their height and chest measurement and we’ll suggest a size.