Converting US Kids' Clothing Sizes to Australian

Australian kids' sizing **differs significantly** from US. **AU sizes ≈ child's age in years** (but based on height/cm). US sizes are **age-based but run larger**.

Quick Conversion Chart

US SizeAU SizeChild Height (cm)Approx. Age
Toddlers (2T–5T)
2T184–901–2 yr
3T290–962–3 yr
4T396–1023–4 yr
5T4102–1084–5 yr
Little Kids (4–6X)
44102–1084–5 yr
55108–1145–6 yr
6 / 6X6114–1206–7 yr
Big Kids (7–16)
78120–1267–8 yr
810126–1328–9 yr
1012132–1389–10 yr
1214138–14411–12 yr
1416144–15213–14 yr
1618152–16015–16 yr

Critical Rules

  1. ALWAYS USE HEIGHT (CM). AU size = height in cm / 6 (roughly). Check brand size chart.
  2. US runs 1–2 sizes LARGER. US 8 ≈ AU 10.
  3. No "T" in AU. Toddler sizes just 1,2,3,4.
  4. No 6X in AU. Goes 6 → 8.
  5. Brands vary: Target (AU) ≠ Kmart (AU) ≠ Cotton On ≠ US brands sold in AU (Gap, H&M, Zara run true to their own charts).

Shoes: Different System

  • **AU/UK sizing** (e.g., AU 10 = UK 10 = US 11 child / EU 28).
  • Measure foot in mm; use **Mondopoint** or brand chart.
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