Kids Shoe Brand Size Converter & Fit Tool
Switching between Nike, Adidas, Crocs, or Stride Rite? Select your child's current shoe size to instantly calculate exact equivalents across all major footwear brands.
Direct Answer: How Kids Shoe Sizes Vary by Brand
Children's shoe sizes do not fit identically across brands. Nike and Jordan typically run 0.5 size small and narrow; Converse runs 0.5 size large; Adidas fits true to size with a wider toe box; and Stride Rite and New Balance offer dedicated Wide and Extra Wide options for chunky toddler feet.
Interactive Brand Cross-Sizer
Pick the shoe your child currently wears well, and see recommended sizes in other brands.
Recommended Sizes in Other Brands:
Foot Length: ~15.2 cm (6.0 in)Master Brand Fit Characteristics & Offset Rules
Standard guidelines published by manufacturers and verified by footwear fitting specialists.
| Brand | Fit Profile | Width Tendency | Practical Sizing Rule |
|---|---|---|---|
| Nike Kids | Runs Small / Snug | Narrow | Nike models generally run a half-size smaller or narrower than casual footwear. |
| Adidas Kids | True to Size | Standard | Adidas footwear generally fits true to size; use the removable Adifit measuring insole when available. |
| Crocs Kids | Custom System (C/J) | Generous / Wide | Crocs uses 'C' for Children/Toddlers (C4–C13) and 'J' for Juniors (J1–J6). Never size down. |
| Stride Rite | True to Size | Offers Multiple Widths | Stride Rite offers Medium, Wide, and Extra Wide fits designed specifically for chubby toddler feet. |
| Vans Kids | Runs Small / Snug | Standard | Vans Classic Slip-Ons require extra instep room; choose a half size larger if your child has tall arches. |
| Converse Kids | Runs Large | Narrow | Classic Chuck Taylor All Stars run roughly a half-size large; consider sizing down. |
| New Balance Kids | True to Size | Offers Multiple Widths | New Balance fits true to size and offers dedicated Standard, Wide, and Extra Wide widths. |
| Jordan Kids | Runs Small / Snug | Narrow | Air Jordan kids and GS models fit similarly to Nike; consider sizing up 0.5 size for wide feet or thick athletic socks. |
| Clarks Kids | True to Size | Offers Multiple Widths | Clarks uses UK Brannock sizing with specialized E, F, G, and H width fittings. F is standard. |
| Amazon Kids | True to Size | Standard | Pay close attention to Amazon age tier labels: Infant (0-4), Toddler (4-10), Little Kid (10.5-3), Big Kid (3.5-7). |
| Target Cat & Jack | True to Size | Standard | Target Cat & Jack shoes run true to standard US Brannock measurements. |
| Walmart Wonder Nation | True to Size | Generous / Wide | Wonder Nation footwear fits true to standard US sizing with a slightly wider, relaxed toe box. |
| Carter's & OshKosh | True to Size | Generous / Wide | Carter's baby shoes are sized by age months for crib stages, transitioning to standard US sizes (1-12) for walkers. |
| Skechers Kids | True to Size | Generous / Wide | Skechers kids shoes fit true to standard US size with a roomy, forgiving toe box. |
| Under Armour Kids | Runs Small / Snug | Narrow | Under Armour kids shoes run a half size small; size up 0.5 size for athletic socks and growing feet. |
| Puma Kids | Runs Small / Snug | Narrow | Puma classic leather/suede shoes fit narrow; choose half a size up for chubby toddler feet. |
| Asics Kids | True to Size | Standard | Asics kids shoes fit true to standard US measurements with excellent medial support. |
| Native Shoes | Custom System (C/J) | Standard | Native Shoes only come in whole sizes (C4 to J6); always round UP to the next whole size. |
| Keen Kids | True to Size | Generous / Wide | Keen kids shoes run true to size with a naturally wide, foot-shaped toe box. |
| Birkenstock Kids | True to Size | Offers Multiple Widths | Birkenstock uses European sizing (EU 24–35). Feet must sit inside the rim with 5mm heel and 10mm toe space. |
Frequently Asked Questions About Brand Sizing
Expert answers on manufacturer discrepancies, sizing differences, and online shopping returns.
Small questions. Clear answers.
Helpful fit allowances, measuring wisdom, and sizing advice for parents.
Do all children's shoe brands fit the same in the same size?
No. While standard US sizes share theoretical last lengths, real-world manufacturing varies significantly. Nike and Jordan tend to run narrow and a half-size small; Converse runs roughly a half-size large; Adidas runs true to slightly wide; and Stride Rite is built true with dedicated Wide and Extra-Wide options.
If my child wears size 8C in Nike, what size should I buy in Adidas?
Because Nike runs snug and narrow, an 8C in Nike typically fits comfortably in a standard size 8C (or 8K) in Adidas, which has a wider, more rounded toe box.
How do Crocs kids sizes (C and J) convert to standard US sizes?
Crocs designates infant and toddler sizes as 'C' (C4 through C13) and youth sizes as 'J' (J1 through J6). C4 equals US 4C, and J1 equals US 1Y. Crocs have a relaxed, roomy fit with no half sizes; always size up if between sizes.
Why does Converse run bigger than other kids shoes?
Converse Chuck Taylor All Stars are traditionally constructed on long, flat canvas lasts that run approximately a half size larger than standard athletic running sneakers like Nike or Asics.
What is the safest way to cross-shop across different brands?
Always measure your child's bare foot length in millimeters or centimeters. Cross-referencing foot length against each brand's official millimeter size chart avoids international conversion confusion.