LittleNova fit and measurement guide

Kids’ Size Guide

Find a comfortable fit for every stage of growing up.

Use this general guide to compare a child’s current measurements with common baby, toddler, kids’, and teen clothing sizes. Product-specific measurements should always take priority when available.

Measure First Use current body measurements

Check the Product Review item-specific sizing details

Allow for Growth Consider preferred fit and movement

LittleNova Fit Lab Measurement profile

Ready

Step 01 Measure

Step 02 Compare

Step 03 Select

Important sizing note

Children grow at different rates, and sizing can vary by product, material, cut, and manufacturer. Use this page as a general reference, then review the measurements shown on the individual product page.

How to Measure

Use a soft tape and measure without pulling tightly.

Measure over light clothing or close-fitting undergarments while the child stands naturally.

Height

Measure from the top of the head to the floor without shoes.

Chest

Measure around the fullest part of the chest with arms relaxed.

Waist

Measure around the natural waist without pulling the tape tightly.

Hip

Measure around the fullest part of the hips and seat.

Inseam

Measure from the upper inner thigh down to the ankle.

General Size Charts

Choose an age group and preferred measurement unit.

Baby Size Reference Newborn to 24 months

General guide

Size	Height	Weight	Chest
Newborn	Up to 21 in	Up to 8 lb	15–16.5 in
0–3M	21–24 in	8–13 lb	16.5–17.5 in
3–6M	24–26.5 in	13–17 lb	17.5–18.5 in
6–9M	26.5–28.5 in	17–21 lb	18.5–19 in
9–12M	28.5–30.5 in	21–25 lb	19–19.75 in
12–18M	30.5–32.5 in	25–28 lb	19.75–20.5 in
18–24M	32.5–34 in	28–30 lb	20.5–21 in

Size	Height	Chest	Waist
2T	33–35 in	20.5–21.5 in	20–20.5 in
3T	35–38 in	21.5–22.5 in	20.5–21 in
4T	38–41 in	22.5–23.5 in	21–21.5 in
5T	41–44 in	23.5–24.5 in	21.5–22 in

Size	Height	Chest	Waist	Hip
4	39–42 in	22.5–23.5 in	21–21.5 in	23–24 in
5	42–45 in	23.5–24.5 in	21.5–22 in	24–25 in
6	45–48 in	24.5–25.5 in	22–22.5 in	25–26 in
7–8	48–53 in	25.5–27.5 in	22.5–23.5 in	26–29 in
10	53–56 in	27.5–29 in	23.5–24.5 in	29–31 in
12	56–59 in	29–31 in	24.5–25.5 in	31–33 in

Size	Height	Chest	Waist	Hip
14	59–62 in	31–33 in	25.5–27 in	33–35 in
16	62–64 in	33–35 in	27–28.5 in	35–37 in
18	64–66 in	35–37 in	28.5–30 in	37–39 in
20	65–67 in	37–39 in	30–32 in	39–41 in

These measurements are general body-size references, not finished garment measurements.

Choosing Between Sizes

Consider the garment, the child, and the preferred fit.

A child can fall between two sizes. The best choice depends on the product style, fabric stretch, expected growth, and how the garment should fit.

Product measurements take priority.

When a product page includes a specific chart, use that chart instead of this general reference.

Choose the smaller size when

The item is designed to be loose, the fabric stretches, or a more fitted appearance is preferred.

Choose the larger size when

The child is between measurements, extra movement is needed, or room for growth is preferred.

For sleepwear

Follow the product’s stated fit and safety guidance. Some children’s sleepwear is intentionally designed to fit snugly.

For formal clothing

Compare chest, waist, hip, and length measurements carefully because occasionwear may have less stretch.

Fit Checklist

Review these details before selecting a size.

Tap each item after checking the product information and the child’s measurements.

Complete the checklist before selecting a size.

Consider the preferred fit, garment style, material stretch, and expected room for growth. The larger size is often more suitable when extra movement or growing room is preferred.

No. Sizing can vary by product and manufacturer. Always use the individual product chart when one is available.

Age is only a general reference. Height, chest, waist, hip, and weight measurements provide a more reliable comparison.

LittleNova offers free returns and exchanges within 30 days, subject to the store’s return conditions and product availability.