Shoe size converter

How does your shoe size convert?

Compare reference sizes for adults and children.

Size chart

Size system

Your size

Matching chart rows

Matching chart rows
EU	UK	US	Length (cm)	Mondopoint (mm)
42	8.5	9	26	260

Approximate reference only. Brands and shoe widths differ. Lengths come from this chart; check the maker’s foot-length guide before buying. Youth US 1.5 is omitted because its UK value in the source is inconsistent.

Sources: Shoe Size Converter Charts · Checked October 15, 2026

Full chart for this group

Full chart for this group
EU	UK	US	Length (cm)	Mondopoint (mm)
39	5.5	6	23.5	235
39	6	6.5	24.1	241
40	6.5	7	24.4	244
40–41	7	7.5	24.8	248
41	7.5	8	25.4	254
41–42	8	8.5	25.7	257
42	8.5	9	26	260
42–43	9	9.5	26.7	267
43	9.5	10	27	270
43–44	10	10.5	27.3	273
44	10.5	11	27.9	279
44–45	11	11.5	28.3	283
45	11.5	12	28.6	286
46	12.5	13	29.4	294
47	13.5	14	30.2	302
48	14.5	15	31	310
49	15.5	16	31.8	318

Men’s chart

EU 42 · UK 8.5 · US 9

How to use

Choose the adult or child chart that matches your shoe label.
Choose your current size system and a listed size.
Read every matching row and confirm the fit with the shoe maker.

How it works

Shoe labels are not a universal measurement. This converter reproduces the reference rows published by Shoe Size Converter Charts, keeping ranges and repeated sizes. If one size has two rows, both are shown rather than choosing one for you.

Mondopoint is a foot-measurement system described by ISO 9407. Here its length column is the chart’s centimetre value multiplied by 10: 26 cm becomes 260 mm. For example, the men’s reference row links EU 42 with UK 8.5, US 9 and 26 cm. This is a chart comparison, not a claim that every EU 42 shoe fits that foot.

Adult, child and youth scales have different starting points. Width, shape and brand allowances are not represented. Use the manufacturer’s own guide for a purchase; the source’s anomalous youth US 1.5 row is deliberately omitted.

Frequently asked questions

Why are there two answers for some EU sizes?

The reference chart repeats some EU labels for adjacent US or UK sizes. We show all matching rows and preserve ranges such as 40–41.

Can I enter a length between two chart values?

Only listed reference lengths are supported. We do not round your foot measurement to a size or add growing room for a child.

Are men’s and women’s US shoe sizes interchangeable?

No. Choose the chart that matches the shoe label. The same US number can correspond to different lengths in the two charts.

Does the chart include shoe width?

No. It compares size labels and length only. Width and shoe shape need the manufacturer’s own fit guide.

Is Mondopoint the length of the shoe’s sole?

No. It refers to foot measurements. The length shown here is the chart’s centimetre value converted to millimetres, not an outsole measurement.

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