True-to-Size Millimeter Sizing Comparison
Adidas Gazelle vs New Balance 574 Core
Detailed size conversion chart, cavity measurements in millimeters, and crowd-sourced fit advice for choosing your perfect size.
Interactive Size Converter
Select what size you wear in the Gazelle to see your calculated size in the 574 Core.
Complete Size Conversion Matrix
Direct millimeter-calibrated mapping comparing all available sizes between both shoes.
| Gazelle (US) | Internal Cavity | 574 Core Equivalent | Match Accuracy | Fit Difference |
|---|---|---|---|---|
| US 4 | 237 mm | US 4.5 | 62% | +3.2 mm |
| US 4.5 | 241 mm | US 5 | 50% | +4.2 mm |
| US 5 | 245 mm | US 5 | 98% | +0.2 mm |
| US 5.5 | 249 mm | US 5.5 | 86% | +1.2 mm |
| US 6 | 254 mm | US 6 | 86% | +1.2 mm |
| US 6.5 | 258 mm | US 6.5 | 74% | +2.2 mm |
| US 7 | 262 mm | US 7 | 62% | +3.2 mm |
| US 7.5 | 266 mm | US 7.5 | 50% | +4.2 mm |
| US 8 | 271 mm | US 8 | 50% | +4.2 mm |
| US 8.5 | 275 mm | US 8 | 98% | +0.2 mm |
| US 9 | 279 mm | US 8.5 | 86% | +1.2 mm |
| US 9.5 | 283 mm | US 9 | 74% | +2.2 mm |
| US 10 | 287 mm | US 9.5 | 62% | +3.2 mm |
| US 10.5 | 292 mm | US 10 | 62% | +3.2 mm |
| US 11 | 296 mm | US 10.5 | 50% | +4.2 mm |
| US 11.5 | 300 mm | US 10.5 | 98% | +0.2 mm |
| US 12 | 304 mm | US 11 | 86% | +1.2 mm |
| US 12.5 | 309 mm | US 11.5 | 86% | +1.2 mm |
| US 13 | 313 mm | US 12 | 74% | +2.2 mm |
| US 13.5 | 317 mm | US 12.5 | 62% | +3.2 mm |
| US 14 | 321 mm | US 13 | 50% | +4.2 mm |
| US 14.5 | 326 mm | US 13.5 | 50% | +4.2 mm |
| US 15 | 330 mm | US 13.5 | 98% | +0.2 mm |
| US 16 | 334 mm | US 14 | 86% | +1.2 mm |
| US 17 | 342 mm | US 15 | 62% | +3.2 mm |
| US 18 | 351 mm | US 16 | 50% | +4.2 mm |
| US 19 | 359 mm | US 17 | 27% | +6.2 mm |
| US 20 | 368 mm | US 18 | 15% | +7.2 mm |
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Frequently Asked Questions
How does the Gazelle size compare to the 574 Core?
Both shoes share a very similar length profile. We recommend ordering your standard size in both. The Gazelle has an internal fit offset of 0.04mm compared to -0.76mm for the 574 Core.
Do these shoes fit wide feet comfortably?
The Gazelle has a snug/narrow width profile, while the 574 Core is snug/narrow.