Buying kids' clothes online in Australia can feel like guesswork — sizes jump from months to years, and every little one grows at their own pace. Here's a simple, no-stress guide to getting the fit right the first time.
How kids' clothing sizes work
Most baby and children's sizes are based on age, but they're really a guide to height and build — not a rule. You'll usually see two systems:
- Baby sizes (months): 0–3M, 3–6M, 6–12M, 12–18M, 18–24M — based on your baby's age in months.
- Toddler & kids sizes (years): 2–3, 3–4 (or 2T–8T / 2Y–8Y) — based on age in years.
Because brands cut differently, the best approach is always to measure your child and compare to the garment's measurements rather than relying on age alone.
How to measure your little one
- Height: stand them against a wall, heels down, and measure from the floor to the top of the head.
- Chest: measure around the fullest part, under the arms, keeping the tape level.
- Waist: measure around the natural waistline, comfortably loose.
Every minimerri product page includes a size & measurements chart in inches for that exact style — check it before you buy, and see our full size guide for the basics.
Leave a little room to grow
Little ones grow quickly, so if your child is between sizes, sizing up is usually the safer choice — especially for outerwear and cosy knits that layer over other clothes. For dresses and matching sets, a relaxed fit means more wears across the seasons.
Quick fit tips by style
- Dresses: go by chest and length; a roomy fit twirls better and lasts longer.
- Sets & tees: check chest first — bottoms are usually forgiving with elastic waists.
- Newborn & baby: easy openings and stretchy fabric matter as much as the number on the label.
Still unsure? Our sizes run to standard fit — when in doubt, size up. Explore new arrivals or shop everything and check each style's measurements as you go.