Size Guide

Yo Baby Size Guide

Finding the perfect fit for your little one is easy with our size guide. All Yo Baby clothing is designed with a comfortable, relaxed fit to allow for movement and growth.


Girls — Dresses, Sets & Rompers

Infant Sizes (0–24 Months)

Size Age Weight Height
0–3M 0–3 Months Up to 6 kg Up to 60 cm
3–6M 3–6 Months 6–7 kg 60–67 cm
6–9M 6–9 Months 7–9 kg 67–72 cm
9–12M 9–12 Months 9–10 kg 72–76 cm
12–18M 12–18 Months 10–11 kg 76–82 cm
18–24M 18–24 Months 11–13 kg 82–87 cm

Kids Sizes (2–13 Years)

Size Age Weight Height
2 Years 2 Years 12–14 kg 86–92 cm
3 Years 3 Years 14–16 kg 92–98 cm
4 Years 4 Years 16–18 kg 98–104 cm
5 Years 5 Years 18–20 kg 104–110 cm
6 Years 6 Years 20–22 kg 110–116 cm
7–8 Years 7–8 Years 22–26 kg 116–128 cm
9–10 Years 9–10 Years 26–32 kg 128–138 cm
11–12 Years 11–12 Years 32–40 kg 138–149 cm
13 Years 13 Years 40–48 kg 149–156 cm

Boys — Rompers, Shirts & Sets

Infant Sizes (0–24 Months)

Size Age Weight Height
0–3M 0–3 Months Up to 6 kg Up to 60 cm
3–6M 3–6 Months 6–7 kg 60–67 cm
6–9M 6–9 Months 7–9 kg 67–72 cm
9–12M 9–12 Months 9–10 kg 72–76 cm
12–18M 12–18 Months 10–11 kg 76–82 cm
18–24M 18–24 Months 11–13 kg 82–87 cm

Kids Sizes (2–13 Years)

Size Age Weight Height
2 Years 2 Years 12–14 kg 86–92 cm
3 Years 3 Years 14–16 kg 92–98 cm
4 Years 4 Years 16–18 kg 98–104 cm
5 Years 5 Years 18–20 kg 104–110 cm
6 Years 6 Years 20–22 kg 110–116 cm
7–8 Years 7–8 Years 22–26 kg 116–128 cm
9–10 Years 9–10 Years 26–32 kg 128–138 cm
11–12 Years 11–12 Years 32–40 kg 138–149 cm
13 Years 13 Years 40–48 kg 149–156 cm

Sizing Tips

  • When between sizes, size up. Our styles are designed with a relaxed fit, so sizing up ensures room for movement and growth.
  • Check the specific product description. Some styles run slightly smaller or larger — we always note this in the product description when relevant.
  • For infant dresses with bloomers, the bloomer size matches the dress size.
  • Still unsure? Contact us at yobabywholesale@gmail.com and we'll help you choose the right size.

How to Measure

  • Height — Measure from the top of the head to the heel while standing straight.
  • Weight — Use your most recent measurement for the best fit.
  • Chest — Measure around the fullest part of the chest, keeping the tape parallel to the floor.
  • Waist — Measure around the natural waistline, the narrowest part of the torso.

All measurements are approximate guidelines. Individual children may vary.