What Size Slides Should I Buy? US, EU and CM Conversion (2026)
Buy your true US shoe size. On the eight Adam & Westcott slides that publish a conversion chart, US 9 is EU 43, UK 8 and 27 cm, and every half size up adds exactly 0.5 cm of length, so sizing up a full size adds 1 cm you do not need.
Slides look forgiving, which is why men guess. The Adam & Westcott range runs 32 pairs from $29.98 to $49.99, and the size run differs.
Last updated: October 2026
What size slides should I buy?
Take your usual US sneaker size and buy it. Eight of the 32 slides print a US, EU, UK and centimetre chart, identical on all eight: US 6, EU 40, UK 5, 24 cm, rising in 0.5 cm steps to US 14, EU 48, UK 13, 32 cm. To measure instead, mark heel to longest toe on paper and read the centimetre column.
| US | EU | UK | Foot length |
|---|---|---|---|
| 6 / 6.5 | 40 | 5 / 5.5 | 24 / 24.5 cm |
| 7 / 7.5 | 41 | 6 / 6.5 | 25 / 25.5 cm |
| 8 / 8.5 | 42 | 7 / 7.5 | 26 / 26.5 cm |
| 9 / 9.5 | 43 | 8 / 8.5 | 27 / 27.5 cm |
| 10 / 10.5 | 44 | 9 / 9.5 | 28 / 28.5 cm |
| 11 / 11.5 | 45 | 10 / 10.5 | 29 / 29.5 cm |
| 12 / 12.5 | 46 | 11 / 11.5 | 30 / 30.5 cm |
| 13 / 13.5 | 47 | 12 / 12.5 | 31 / 31.5 cm |
| 14 | 48 | 13 | 32 cm |
How do US slide sizes convert to EU?
One EU number covers two US half sizes, so EU 42 is both US 8 and US 8.5. That is the most common conversion mistake. Knowing only your EU size, take the lower US one, since EU 42 spans 26 cm and 26.5 cm. EU 48 is the exception, mapping to US 14 alone at 32 cm.
Should slides be a size bigger?
No. One full size up is one extra centimetre of footbed, and on a backless slide that length hangs off the heel rather than giving room. The open build already allows for width. Three pairs do build the slack in, sold in two-size ranges:
-
SoftCloud Comfort Slippers at $42.99, six steps from 5-6 US to 15 US, the only pair reaching US 15. -
Tidelane Tide Slides at $39.99, six steps from US 4-5 to US 12. -
Havenpair Soft Slippers at $39.98, five steps from US 4-5 to US 10.5-11.5.
On those three, take the band your size falls inside. A US 9.5 foot takes 9-10 US and nothing else.
Which Adam & Westcott slides run the widest size range?
Twenty seven of the 32 offer half sizes, 20 run a complete ladder with no gaps, and 12 cover the full US 6 to 14 span.
| Slide | Size run | Steps | Price |
|---|---|---|---|
 Two Tone Slip On Slides |
US 6 to 14 | 16 | $44.99 |
 Textured Footbed Slides |
US 6 to 14 with 13.5 | 17 | $39.98 |
 Lug Sole Slippers |
US 6 to 14 with 13.5 | 17 | $39.98 |
 Padded Footbed Slides |
US 6 to 13 | 15 | $34.98 |
 Two Strap Slides |
US 6 to 12 | 13 | $42.98 |
The 
Two Tone Slip On Slides is the best selling slide at Adam & Westcott, 123 pairs in the last 30 days, and it publishes the full chart, which makes it the safest first order.
What if I take a US 13.5 or 14?
Your choice narrows fast. Across the 29 single size listings, US 7 through 11 are carried on all 29, US 12.5 on 19, US 14 on 13 and US 13.5 on just 6. The two 17 step pairs, 
Textured Footbed Slides and 
Lug Sole Slippers, are the only ones carrying both 13.5 and 14, at $39.98.
Two pairs sell in whole sizes only: 
Shoreform Summer Slippers at $39.98 in US 7 to 13, and 
Stillwave Thick-Sole Slides at $39.98 in US 6 to 12. A half size foot rounds down on both, since the size below sits 0.5 cm closer to your measurement.
Frequently asked questions
What size slides should I buy if I am a US 10 in sneakers?
A US 10, which is EU 44, UK 9 and 28 cm on the Adam & Westcott chart, and it is carried on all 29 single size listings.
Do slides run big or small at Adam & Westcott?
Neither. All eight published charts use the same ladder, US 6 at 24 cm to US 14 at 32 cm, so your sneaker size measures what it should.
Is EU 43 a US 9 or a US 9.5?
Both. EU 43 covers US 9 at 27 cm and US 9.5 at 27.5 cm, so choose by the centimetre figure rather than the EU number.
What is the largest slide size Adam & Westcott carries?
US 15, on the SoftCloud Comfort Slippers at $42.99. The largest single size is US 14, on 13 listings.
Should I size up for wide feet in slides?
Sizing up adds 1 cm of length, not width. No Adam & Westcott slide publishes a width letter, so stay in your true length and favour the adjustable and multi strap styles.
Sizing the rest of the rack: What Size Sneakers Should I Buy?, Best House Slides and Indoor Shoes for Men, and Leather Sandals vs Slides.