This Shoe Size Converter provides accurate US, EU, UK, CM, IN, Mondopoint (MM), MX, KR, & CN conversions. Find Men's, Women's & Kids' sizes instantly. Charts & measurement guide included.
Select shoe type, then enter any single measurement (US, EU, UK, CM, IN, MM, MX, or CN). Our shoe size converter does the rest!
Results use standard conversions. Brand sizing varies significantly! Using CM / IN / MM foot length provides the best accuracy estimate.
Precise foot length (CM/IN/MM) is crucial for accurate shoe size conversion, especially when comparing brands.
Download our free PDF tool with ruler markings for easy measurement.
Download PDF Tool(Remember to print at 'Actual Size' or '100%' scale for accuracy.)
Compare standard US, EU, UK, CM, IN, Mondopoint (MM), MX, and CN sizes below. Use these charts alongside our shoe size converter. Remember that CM/IN values represent approximate foot length.
| US Men | EU | UK | CM | IN | Mondo (mm) | MX | CN |
|---|---|---|---|---|---|---|---|
| 6 | 39 | 5.5 | ~23.9 | ~9.4 | 239 | ~5 | ~39 |
| 7 | 40 | 6.5 | ~24.8 | ~9.8 | 248 | ~6 | ~40 |
| 8 | 41.5 | 7.5 | ~25.7 | ~10.1 | 257 | ~7 | ~41.5 |
| 9 | 42.5 | 8.5 | ~26.5 | ~10.4 | 265 | ~8 | ~42.5 |
| 10 | 44 | 9.5 | ~27.3 | ~10.7 | 273 | ~9 | ~44 |
| 11 | 45 | 10.5 | ~28.1 | ~11.1 | 281 | ~10 | ~45 |
| 12 | 46 | 11.5 | ~29.0 | ~11.4 | 290 | ~11 | ~46 |
| 13 | 47 | 12.5 | ~29.8 | ~11.7 | 298 | ~12 | ~47 |
| 14 | 48 | 13.5 | ~30.6 | ~12.0 | 306 | ~13 | ~48 |
| 15 | 49 | 14.5 | ~31.4 | ~12.4 | 314 | ~14 | ~49 |
| 16 | 50 | 15.5 | ~32.0 | ~12.6 | 320 | ~15 | ~50 |
| 17 | ~51 | 16.5 | ~32.8 | ~12.9 | 328 | ~16 | ~51 |
| 18 | ~52 | 17.5 | ~33.6 | ~13.2 | 336 | ~17 | ~52 |
| US Women | EU | UK | CM | IN | Mondo (mm) | MX | CN |
|---|---|---|---|---|---|---|---|
| 5 | 35.5 | 3 | ~21.9 | ~8.6 | 219 | ~3 | ~35.5 |
| 6 | 36.5 | 4 | ~22.7 | ~8.9 | 227 | ~4 | ~36.5 |
| 7 | 37.5 | 5 | ~23.6 | ~9.3 | 236 | ~4.5 | ~37.5 |
| 7.5 | 38 | 5.5 | ~24.1 | ~9.5 | 241 | ~5 | ~38 |
| 8 | 38.5 | 6 | ~24.5 | ~9.6 | 245 | ~5.5 | ~38.5 |
| 8.5 | 39 | 6.5 | ~24.9 | ~9.8 | 249 | ~6 | ~39 |
| 9 | 40 | 7 | ~25.3 | ~10.0 | 253 | ~6.5 | ~40 |
| 10 | 41 | 8 | ~26.1 | ~10.3 | 261 | ~7.5 | ~41 |
| 11 | 42.5 | 9 | ~26.9 | ~10.6 | 269 | ~8.5 | ~42.5 |
| 12 | 43.5 | 10 | ~27.7 | ~10.9 | 277 | ~9.5 | ~43.5 |
| 13 | 44.5 | 11 | ~28.3 | ~11.1 | 283 | ~10 | ~44.5 |
| 14 | ~46 | 12 | ~29.1 | ~11.5 | 291 | ~11 | ~46 |
| US Kids' | Type | UK Kids' | EU | CM | IN | Mondo (mm) | Approx. Age |
|---|---|---|---|---|---|---|---|
| 4 C | Baby | 3.5 | 19 | ~11.1 | ~4.4 | 111 | ~1 yr |
| 5 C | Toddler | 4.5 | 20 | ~12 | ~4.7 | 120 | ~1-1.5 yrs |
| 7 C | Toddler | 6.5 | 23 | ~14 | ~5.5 | 140 | ~2 yrs |
| 10 C | Toddler | 9.5 | 27 | ~16.5 | ~6.5 | 165 | ~3-4 yrs |
| 1 Y | Youth | 13.5 | 32 | ~19.9 | ~7.8 | 199 | ~6 yrs |
| 4 Y | Youth | 3.5 | 36 | ~22.5 | ~8.9 | 225 | ~8-9 yrs |
| 7 Y | Youth | 6.5 | 39.5 | ~25.1 | ~9.9 | 251 | ~11+ yrs |
Quickly convert between US Men's and US Women's standard shoe sizes. Note this is a general rule and doesn't account for width or brand variations.
Standard US conversion rule: US Women's Size ≈ US Men's Size + 1.5.
Shoe sizing can vary significantly between brands! Use our shoe size converter and charts as a starting point, but always check the brand's official size chart before making a purchase.
Nike Sizing: Generally considered true-to-size for many models, but some styles (like certain running shoes) might run slightly small (~0.5 size). Always check their CM/MM measurements if available.
Adidas Sizing: Often fits true-to-size. Compare their UK, EU, and JP (which usually corresponds to CM/Mondopoint) sizing on their charts.
Puma Sizing: Sizing can be variable depending on the shoe style. Referencing their CM guide is highly recommended for the best fit.
New Balance Sizing: Known for offering multiple widths (Narrow, Standard, Wide, X-Wide). Generally true-to-size in length, but check width recommendations. CM/MM charts are helpful.
Dr. Martens Sizing: Primarily uses UK sizing. Often runs large, especially in boots (consider sizing down, particularly if between sizes). They recommend measuring your foot.
Birkenstock Sizing: Uses EU sizing. Known for specific regular and narrow fits based on foot tracings. Their fit guide is essential.
Achieving the perfect shoe fit involves more than just converting numbers. Consider these tips:
This tool uses standard international conversion data, which is generally accurate for *estimating* size. However, due to significant variations between brands and even different shoe models within the same brand, it serves as a guideline. Always verify with the specific brand's size chart and measure your foot length (CM/IN/MM) for the best results.
Using your actual foot length in **Centimeters (CM)** or **Millimeters (MM - Mondopoint)** is the most reliable starting point. Enter this value into the converter. Many brands include CM/MM measurements on their official size charts, allowing for a more direct comparison than relying solely on regional sizes like US, EU, or UK.
There's no perfect formula, as it differs for men/women and brands. Generally: Men's US ≈ (EU Size * 0.75) + 2 (very rough). Women's US ≈ EU Size - 31 (also rough). Use the converter tool or charts above for better estimates, but prioritize brand charts.
Typically, EU 38 ≈ US Women's 7.5, and EU 39 ≈ US Women's 8.5. Check the converter or charts for confirmation.
The standard rule of thumb for US sizes is: **US Women's Size = US Men's Size + 1.5**. Conversely, US Men's Size = US Women's Size - 1.5. Use the dedicated Men's↔Women's converter section above for quick US conversions.
Shoe width varies:
Mexican sizing is highly variable. Sometimes it directly corresponds to the foot length in **CM** (e.g., size 27 = 27 CM foot). Other times, it roughly aligns with **US Men's size minus 1.5 or 2**. Using your CM measurement is the safest way to compare.
Korean (KR) sizing is straightforward: it's the **foot length in Millimeters (MM)**. This is the same as the **Mondopoint** system. For example, KR 265 = 265 MM = 26.5 CM foot length. Use the "Mondo/KR (mm)" input field.
Chinese (CN) sizing is notoriously inconsistent. Often, it mirrors the **EU size**. Sometimes, particularly with shoes manufactured for the domestic market or specific types like athletic shoes, it might represent the **foot length in Millimeters (MM)** similar to KR/Mondopoint. Always look for clarification on the product page or brand chart, and prioritize CM/MM measurements.
Kids' sizing progresses from Baby/Infant sizes (ending in 'C' for Crib/Child), through Toddler sizes (also 'C'), up to size 13.5C. After 13.5C, it switches to Youth sizes starting at 1Y and goes up (e.g., 1Y, 2Y, 3Y...). Size 1Y is larger than 13.5C.
Mondopoint is an international standard based on **foot length and width in Millimeters (MM)**. For example, 270/105 means 270mm long and 105mm wide. The converter uses the length component (MM). It's commonly used for ski boots, military boots, and is the same length measurement as Korean (KR) sizing.
This shoe size converter, charts, and guides are provided as reference tools only. Sizing standards, manufacturing processes, and last shapes vary significantly between brands and even different styles from the same brand.
Always prioritize measuring your foot accurately (CM/IN/MM) and consulting the specific brand's official size chart and fit recommendations before purchasing footwear. Relying solely on conversion may lead to an incorrect fit.