tbwFree Online Tool

Girls Clothes in Size 10 to 12

Size 10 to 12 is often medium to large. Check each brand's chart.

Updated Nov 1, 2026. Edited by: Ilyass Ben Hakim.

Where to buy

Department stores, kids chains and big online shops all carry this range. Secondhand and consignment shops are good for fast growing kids.

Professional insight

Kids wear buyers fit size 10 to 12 by height first. Age labels are only a rough guide.

Many brands label 10 to 12 as M or L.
Some brands sell 10/12 as one combined size.
Slim and plus cuts exist in many lines.
UK and EU tags often show age or cm.

Check the label

Size reads 10, 12 or 10/12, not toddler or juniors.
Height range in inches or cm on the tag or chart.
Fit noted as regular, slim or plus.
Fiber content for each garment, like cotton or spandex.
Care instructions, including tumble dry limits.
Drawstring free hoods and necklines on tops.

0 of 6 checked

Sizing

Typical US girls body measurements; brands vary
Size	Chest (in)	Waist (in)	Height (in)
10	28	24	57
12	30	25	60

Measure your child's chest, waist and height. Then compare with the brand's own chart before you order.

Features to look for

Adjustable waistbands for growth.
Pre-shrunk cotton or a note on shrinkage.
Reinforced knees on leggings and jeans.
Longer inseam options for tall kids.
Soft seams and printed tags for sensitive skin.

Safe use

Waist drawstrings should stick out 3 inches or less.
No toggles or knots on drawstring ends.
Remove cords from older secondhand hoodies.

Ways to save

Buy one size up for coats and jackets.
Shop end of season sales for next year.
Check sibling bundles at thrift shops.
Keep receipts and know the return window.

Common questions

What age is size 10 to 12?: Often around 9 to 11 years. Height matters more than age.
Is 10/12 the same as size large?: At many brands it is medium or large. Check the chart.
What comes after size 12?: Usually 14 and 16, then juniors or adult sizes.
Should I size up?: For outerwear, often yes. For school uniforms, check fit rules.