Baby Shoes Size Guide | Mi Petit Pois

Your Complete Guide to European Baby & Toddler Shoe Sizes

Shopping for Spanish baby shoes is one of the most rewarding parts of dressing your little one, but it can feel confusing if you're used to US sizing. European shoe sizes follow a completely different system, and Spanish brands like Saltin y Banquin (carried here at Mi Petit Pois) are sized in EU numbers that don't have an obvious match to the US sizes most Miami parents are familiar with.

Below you'll find a full EU-to-US conversion chart covering newborns through age 4, a step-by-step guide to measuring your baby's foot at home, and tips for getting the best fit from Spanish-made shoes. Bookmark this page - you'll come back to it every time your little one grows.

How European Shoe Sizing Works

European (EU) shoe sizes use the Paris Point system, where each size increment equals approximately 6.67mm (about ⅔ of a centimeter). Unlike US sizing - which uses separate scales depending on age group and gender - EU sizes are consistent and unisex, making them simpler to interpret once you understand the reference point.

For babies and toddlers, EU sizes typically begin at EU 16 (for newborns, approximately 0–3 months) and increase by one size for roughly every 6–8mm of foot growth. Spanish shoe brands are crafted to generous EU standards, meaning they often fit true to size or even slightly roomier than equivalent US or UK shoes - always a plus for growing feet.

EU to US Baby & Toddler Shoe Size Conversion Chart

Covers newborns through age 4 — the full size range carried at Mi Petit Pois.

EU Size US Size UK Size Foot Length (cm) Foot Length (in) Approx. Age
16 1C 0.5 8.9 cm 3.5" Newborn–3 mo
17 2C 1 9.5 cm 3.75" 3–6 months
18 3C 2 10.5 cm 4.1" 6–9 months
19 3.5C 2.5 10.8 cm 4.25" 9–12 months
19 4C 3 11.4 cm 4.5" 9–12 months
20 4.5C 3.5 11.7 cm 4.6" 12 months
20 5C 4 12.1 cm 4.75" 12–18 months
21 5.5C 4.5 12.7 cm 5.0" 18–24 months
22 6C 5 13.0 cm 5.1" 2 years
22 6.5C 5.5 13.3 cm 5.25" 2 years
23 7C 6 14.0 cm 5.5" 2 years
23 7.5C 6.5 14.3 cm 5.6" 2–3 years
24 8C 7 14.6 cm 5.75" 2–3 years
25 8.5C 7.5 15.2 cm 6.0" 3 years
25 9C 8 15.6 cm 6.1" 3 years
26 9.5C 8.5 15.9 cm 6.25" 3 years
27 10C 9 16.5 cm 6.5" 4 years
28 11C 10 17.1 cm 6.75" 4–5 years

Sizes are gender-neutral. Age ranges are approximate — always use foot length as your primary guide.

A Note on Spanish Baby Shoe Sizing

At Mi Petit Pois, our shoes come from Saltin y Banquin, a beloved Spanish footwear brand crafted for babies and toddlers with soft, breathable materials designed to support developing feet. Here are a few things to know about Spanish sizing specifically:

  • Spanish shoes tend to fit true to EU size. Unlike some brands that run small or large, Saltin y Banquin shoes follow standard EU measurements closely.
  • They are designed for soft, wide baby feet. Spanish baby shoes have a rounded toe box and generous width — ideal for the natural shape of a baby's foot, which is widest at the toes.
  • Soft soles for pre-walkers, firmer soles for toddlers. Pre-walking shoes (EU 16–20) feature soft, flexible soles that allow sensory development. Walking shoes (EU 21+) transition to slightly more structured soles as your toddler finds their stride.
  • Miami's warm climate is a factor. In South Florida's heat, feet can swell slightly during outdoor play. We recommend choosing the size at the top of the range if your child is between sizes, to allow for natural foot expansion.

How to Measure Your Baby's Foot at Home

Getting an accurate measurement takes about two minutes and will save you from guesswork (and returns). Here's how:

Step 1 — Prepare your materials You'll need a blank sheet of paper, a pencil, and a ruler or measuring tape. Do this on a hard floor, not carpet.

Step 2 — Trace the foot Place the paper on the floor. Have your baby stand on it (or gently press their foot flat if they're not walking yet). Hold the pencil vertically — straight up and down — and trace around the entire foot, keeping the pencil as close to the foot as possible.

Step 3 — Measure heel to toe Using your ruler, measure from the very back of the heel mark to the tip of the longest toe. Write down the number in centimeters.

Step 4 — Measure both feet Babies' feet are often slightly different sizes — this is completely normal. Always use the measurement of the longer foot when selecting a size.

Step 5 — Add wiggle room Add 1 to 1.5 cm to your measurement to allow for toe room and growing space. Spanish baby shoes are not designed to fit like a glove — a little room at the front is healthy and intentional.

Step 6 — Compare to the chart above Match your adjusted measurement to the "Foot Length (cm)" column in the table above and select the corresponding EU size.

Frequently Asked Questions: European Baby Shoe Sizes

Do EU shoe sizes run bigger or smaller than US sizes? EU sizes use a completely different numbering system, they aren't simply "bigger" or "smaller," just a different unit of measurement. An EU 22 baby shoe, for example, corresponds to a US size 6C. Always use the foot measurement in centimeters as your reference rather than comparing numbers directly.

What EU size is a newborn? Most newborns (0–3 months) wear EU 16, which corresponds to US size 1C and a foot length of approximately 8.9 cm. Many parents choose to wait until their baby is 3–6 months old before purchasing shoes (EU 17 / US 2C), as true newborns rarely need footwear beyond soft booties.

What EU size is a 1-year-old? Most one-year-olds wear between EU 18 and EU 20, depending on how fast their feet have grown. Measure your child's foot and compare to the chart above for the most accurate fit — age ranges in sizing charts are general guidelines.

What EU size is a 2-year-old? Two-year-olds typically wear EU 22 to EU 23, corresponding to US sizes 6C–7C. At this age, foot growth accelerates, so we recommend re-measuring every 6–8 weeks.

Do Spanish baby shoes run small? Saltin y Banquin shoes follow standard EU sizing and generally fit true to size. If your child is between two sizes, we recommend sizing up, especially for Miami's warmer climate where feet may be slightly puffier during outdoor play.

Can I use this chart for Paz Rodríguez or other Spanish brands? Yes, all European children's brands carried at Mi Petit Pois follow standard EU sizing. The chart above applies across brands.

Shop Baby & Toddler Shoes at Mi Petit Pois

Now that you have the sizing sorted, explore our curated collection of handmade Spanish baby shoes — crafted for little feet and designed to complement every outfit in our collection.

All shoes ship free with orders $100+, anywhere in the continental United States. Questions about sizing? Email us at mipetitpois@gmail.com — we're happy to help you find the perfect fit for your little one.

Mi Petit Pois is a Miami-based luxury baby boutique carrying handmade children's clothing and shoes from Spain. Our shoe collection is sourced from Saltin y Banquin, a Spanish brand trusted by parents across Europe for its commitment to comfort, breathability, and beautiful craftsmanship for developing feet.