What size costume should an 18-24 month old wear?

Most 18-24 month costumes fit toddlers weighing 24-28 pounds. If your child is tall or you plan to layer warm clothes underneath, size up to a 2T.

How do I keep my toddler from pulling off their costume hood?

Choose costumes with hoods that fasten securely under the chin with soft hook-and-loop closures, or opt for a simple matching beanie instead.

Are masks safe for toddlers in this age group?

No, masks are not recommended for toddlers as they can obstruct vision, cause breathing discomfort, and are easily pulled off and lost.

18-24 Months Costumes: Cute Ideas & How to Choose

18-24 Months Costumes

Adorable, comfortable, and safe Halloween looks for active toddlers.

Shopping for toddlers aged 18 to 24 months requires balancing cuteness with mobility and comfort. At this stage, kids are walking, exploring, and highly sensitive to scratchy fabrics or restrictive headpieces. The ideal costume for this age group is soft, easy to put on, and designed with quick diaper access in mind.

Difficulty: Easy
Time: ~15 min
Budget: $15–50

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40 18-24 Months costume ideas

Ranked by how many people are searching for them this season. Open any one for the full guide and to try it on.

What you need for a 18-24 Months Costumes costume

Plush animal jumpsuit or romper
A soft, zippered or snapped one-piece that allows easy movement and quick diaper changes.
DIY: Dye a cotton zippered footie pajama set and fabric-glue felt details to the chest.
Amazon
Soft base layer
A breathable cotton bodysuit and leggings worn underneath to prevent chafing and add warmth.
DIY: Use a clean, snug-fitting long-sleeve tee and sweatpants from their closet.
Amazon
Detachable soft hood or hat
A lightweight headpiece with a secure hook-and-loop chin strap that is easy to remove if the toddler gets fussy.
DIY: Glue felt ears or spikes onto a soft cotton beanie.
Amazon
Flexible slip-on shoes
Comfortable, non-slip sneakers or booties that match the costume's color palette.
DIY: Use their favorite everyday walking shoes for safety.
Amazon

How to put it together

1
Choose a costume style that accommodates walking, such as a romper, jumpsuit, or two-piece set.
2
Dress your toddler in a comfortable, breathable cotton base layer to prevent irritation from synthetic costume fabrics.
3
Put on the main costume body, ensuring there are snaps or a zipper along the inseam for easy diaper access.
4
Secure any headpieces or hoods using soft chin straps, making sure they do not block the child's vision.
5
Put on supportive, non-slip shoes that your toddler is already used to walking in.
6
Check for any loose buttons, strings, or small accessories that could pose a choking hazard before heading out.

Makeup & hair

Keep makeup to an absolute minimum or skip it entirely, as toddlers frequently rub their faces. If necessary, use a tiny dab of hypoallergenic, water-based face paint for simple whiskers or a nose dot.

18-24 Months Costumes for couples, groups, kids & more

couples: Pair an 18-24 month animal costume with a parent dressed as a zookeeper or safari guide.
group: Create a family theme like Goldilocks and the Three Bears, with the toddler as Baby Bear.
kids: Coordinate with older siblings as a superhero duo or classic cartoon characters.
pet: Match your toddler's outfit with a docile family dog dressed in a complementary simple bandana.

Tips

Prioritize diaper access: always look for costumes with crotch snaps or wide leg zippers.
Avoid masks and heavy headwear, as most 18-24 month olds will pull them off immediately.
Layer up for cold weather by buying one size up to fit over a warm jacket or fleece pajamas.
Do a test run at home a few days before Halloween to get them used to the feel of the costume.

18-24 Months Costumes costume FAQ

What size costume should an 18-24 month old wear?: Most 18-24 month costumes fit toddlers weighing 24-28 pounds. If your child is tall or you plan to layer warm clothes underneath, size up to a 2T.
How do I keep my toddler from pulling off their costume hood?: Choose costumes with hoods that fasten securely under the chin with soft hook-and-loop closures, or opt for a simple matching beanie instead.
Are masks safe for toddlers in this age group?: No, masks are not recommended for toddlers as they can obstruct vision, cause breathing discomfort, and are easily pulled off and lost.

Did you know? At 18 to 24 months, toddlers are developing independent mobility, making soft, flexible jumpsuit costumes like lions, pumpkins, and dinosaurs the most popular choices for comfort.