The Ultimate Bobux Size Guide for UK Parents: Find the Perfect Fit for Growing Feet

March 22, 2025

When it comes to supporting healthy foot development, few brands do it better than Bobux. Known for their soft soles, breathable materials, and podiatrist-approved designs, Bobux shoes are a top pick for parents across the UK.

But one common question we hear at Awesome Shoes is: "How do I find the right Bobux size for my child?"

This guide breaks it down—complete with a handy Bobux size conversion chart—so you can shop with confidence.

📏 How Bobux Sizes Work

Unlike many brands, Bobux sizes are based on foot length in millimetres (mm). This makes them incredibly accurate but can be a bit tricky if you’re used to UK or EU sizes.

Each Bobux size corresponds to a specific foot length.
Bobux includes around 12mm of growing room in every shoe.
The best way to get the right size is to measure your child’s feet in mm.

👣 How to Measure Your Child’s Feet

To get the perfect fit:

Place your child’s foot flat on a piece of paper.
Mark the heel and the longest toe.
Measure the distance in millimetres.
Match it to the chart below.

✅ Tip: Always measure both feet and go with the larger foot.

📊 Bobux Size Conversion Chart

Foot Length (mm)	EU Size	UK Size	US Size	Approx. Age	Universal Size
84–90	15	0	0.5	0–3 months	NB
91–98	16	0.5	1	3–9 months	S
99–104	17	1	1.5	3–9 months	S
105–111	18	2	3	9–15 months	M
112–118	19	3	4	9–15 months	M
119–125	20	3.5	4.5	15–27 months	L
126–132	21	4.5	5.5	15–27 months	L
133–139	22	5.5	6.5	2 years	XL
140–145	23	6	7	2 years	XL
146–152	24	7	7.5	2–3 years	2XL
153–159	25	8	8.5	2–3 years	2XL
160–166	26	9	9.5	3–4 years	3XL
167–172	27	9.5	10	3–4 years	3XL
173–179	28	10	10.5	4–5 years	4XL
180–185	29	11	11.5	4–5 years	4XL
186–192	30	11.5	12	5–6 years	5XL
193–199	31	12	13	5–6 years	5XL
200–206	32	13	13.5	6–7 years	6XL
207–213	33	1	1.5	7–8 years	6XL