US
13
=
Australia
12.5
(31cm)
Also: UK 12.5EU 47JP 31CN 47KR 310BR 45MX 12
Nearby Sizes
Try Another Size
Type a size to convert
Full Size Chart
| US | UK | EU | JP | CN | KR | BR | MX | AU | Foot length |
|---|---|---|---|---|---|---|---|---|---|
| 3.5 | 3 | 35 | 21.5 | 35 | 215 | 33 | 2.5 | 3 | 21.5cm |
| 4 | 3.5 | 36 | 22 | 36 | 220 | 34 | 3 | 3.5 | 22cm |
| 4.5 | 4 | 36.5 | 22.5 | 36 | 225 | 34 | 3.5 | 4 | 22.5cm |
| 5 | 4.5 | 37 | 23 | 37 | 230 | 35 | 4 | 4.5 | 23cm |
| 5.5 | 5 | 37.5 | 23.5 | 38 | 235 | 36 | 4.5 | 5 | 23.5cm |
| 6 | 5.5 | 38 | 24 | 38 | 240 | 36 | 5 | 5.5 | 24cm |
| 6.5 | 6 | 39 | 24.5 | 39 | 245 | 37 | 5.5 | 6 | 24.5cm |
| 7 | 6.5 | 40 | 25 | 40 | 250 | 38 | 6 | 6.5 | 25cm |
| 7.5 | 7 | 40.5 | 25.5 | 41 | 255 | 39 | 6.5 | 7 | 25.5cm |
| 8 | 7.5 | 41 | 26 | 41 | 260 | 39 | 7 | 7.5 | 26cm |
| 8.5 | 8 | 42 | 26.5 | 42 | 265 | 40 | 7.5 | 8 | 26.5cm |
| 9 | 8.5 | 42.5 | 27 | 42 | 270 | 41 | 8 | 8.5 | 27cm |
| 9.5 | 9 | 43 | 27.5 | 43 | 275 | 41 | 8.5 | 9 | 27.5cm |
| 10 | 9.5 | 44 | 28 | 44 | 280 | 42 | 9 | 9.5 | 28cm |
| 10.5 | 10 | 44.5 | 28.5 | 44 | 285 | 43 | 9.5 | 10 | 28.5cm |
| 11 | 10.5 | 45 | 29 | 45 | 290 | 43 | 10 | 10.5 | 29cm |
| 11.5 | 11 | 45.5 | 29.5 | 46 | 295 | 44 | 10.5 | 11 | 29.5cm |
| 12 | 11.5 | 46 | 30 | 46 | 300 | 44 | 11 | 11.5 | 30cm |
| 13 | 12.5 | 47 | 31 | 47 | 310 | 45 | 12 | 12.5 | 31cm |
| 14 | 13.5 | 48 | 32 | 48 | 320 | 46 | 13 | 13.5 | 32cm |
Convert US 13 to Other Systems
In men's shoe, a US 13 corresponds to AU 12.5 according to standard international size charts. Your measurement of approximately 31cm 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 13 in AU men's shoe?
US size 13 in men's shoe is equivalent to AU size 12.5. This conversion is based on standard international sizing charts and is widely accepted across brands and retailers.
What is US 13 in other sizing systems?
US size 13 in men's shoe converts to: UK 12.5, EU 47, JP 31. Use our converter above to see all available systems.
Is US 13 the same as AU 12.5?
Yes, US 13 is equivalent to AU 12.5 in standard men'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.
Explore Other Converters
Need help? Read our How to Measure Shoe Size guide.