Size charts Oct 15, 2026 4 min read
School Uniform Size Chart
Uniforms sized by age band from kid 4 through adult 18. Polo + pant + blazer + skirt all use same age-keyed sizing.
The Chart
| Age | Size | Chest | Waist | Height |
|---|---|---|---|---|
| 4-5 | XS / 4 | 23" | 21" | 42-46" |
| 6-7 | S / 6 | 24" | 22" | 46-50" |
| 7-8 | S / 7 | 25" | 22.5" | 50-54" |
| 9-10 | M / 10 | 27" | 23.5" | 54-58" |
| 11-12 | L / 12 | 30" | 25" | 58-61" |
| 13-14 | XL / 14 | 33" | 27" | 61-64" |
| 15-16 | Adult S | 36" | 30" | 64-67" |
| 17-18 | Adult M | 39" | 32" | 67-70" |
FAQs
Order true size or up?
True for short-term wear (final year of size). Up 1 if buying for the school year — kids grow 2-4 inches per year. Hem pants, take in waist if needed.
Boys vs girls uniform sizing?
Polos and shirts often unisex through grade 8. Pants and skirts gender-specific. Blazers rarely differ until adult sizes.
Need this on your store?
Tailor Size Guide ships pre-built size charts for Shopify.