US
10.5
=
Brazil
40
(27.5cm)
Also: UK 8.5EU 42JP 27.5CN 42KR 275MX 8.5AU 8.5
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Full Size Chart
| US | UK | EU | JP | CN | KR | BR | MX | AU | Foot length |
|---|---|---|---|---|---|---|---|---|---|
| 5 | 3 | 35.5 | 22 | 35 | 220 | 33 | 3 | 3 | 22cm |
| 5.5 | 3.5 | 36 | 22.5 | 36 | 225 | 34 | 3.5 | 3.5 | 22.5cm |
| 6 | 4 | 36.5 | 23 | 36 | 230 | 34 | 4 | 4 | 23cm |
| 6.5 | 4.5 | 37 | 23.5 | 37 | 235 | 35 | 4.5 | 4.5 | 23.5cm |
| 7 | 5 | 37.5 | 24 | 37 | 240 | 35 | 5 | 5 | 24cm |
| 7.5 | 5.5 | 38 | 24.5 | 38 | 245 | 36 | 5.5 | 5.5 | 24.5cm |
| 8 | 6 | 38.5 | 25 | 39 | 250 | 37 | 6 | 6 | 25cm |
| 8.5 | 6.5 | 39 | 25.5 | 39 | 255 | 37 | 6.5 | 6.5 | 25.5cm |
| 9 | 7 | 40 | 26 | 40 | 260 | 38 | 7 | 7 | 26cm |
| 9.5 | 7.5 | 40.5 | 26.5 | 40 | 265 | 38 | 7.5 | 7.5 | 26.5cm |
| 10 | 8 | 41 | 27 | 41 | 270 | 39 | 8 | 8 | 27cm |
| 10.5 | 8.5 | 42 | 27.5 | 42 | 275 | 40 | 8.5 | 8.5 | 27.5cm |
| 11 | 9 | 42.5 | 28 | 42 | 280 | 40 | 9 | 9 | 28cm |
Convert US 10.5 to Other Systems
In women's shoe, a US 10.5 corresponds to BR 40 according to standard international size charts. Your measurement of approximately 27.5cm corresponds to this size. This is the most widely accepted conversion, though sizing can differ slightly depending on the brand or manufacturer. For the best results, compare this conversion with the specific product's size recommendations.
Frequently Asked Questions
What is US 10.5 in BR women's shoe?
US size 10.5 in women's shoe is equivalent to BR size 40. This conversion is based on standard international sizing charts and is widely accepted across brands and retailers.
What is US 10.5 in other sizing systems?
US size 10.5 in women's shoe converts to: UK 8.5, EU 42, JP 27.5. Use our converter above to see all available systems.
Is US 10.5 the same as BR 40?
Yes, US 10.5 is equivalent to BR 40 in standard women's shoe sizing. However, fit can vary between brands, so trying on items or checking brand-specific size charts is always recommended.
How accurate are shoe size conversions?
Our size conversions are based on international standards and verified against multiple authoritative sources. They represent the most widely accepted equivalents. However, individual brands may size slightly differently, so we recommend trying items on when possible or checking the brand's own size guide.
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Need help? Read our How to Measure Shoe Size guide.