True-to-Size Millimeter Sizing Comparison
Birkenstock Gizeh - Birko-Flor™ & Birkibuc™ vs Birkenstock Mayari - Birko-Flor™ & Birkibuc™
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 Gizeh - Birko-Flor™ & Birkibuc™ to see your calculated size in the Mayari - Birko-Flor™ & Birkibuc™.
Complete Size Conversion Matrix
Direct millimeter-calibrated mapping comparing all available sizes between both shoes.
| Gizeh - Birko-Flor™ & Birkibuc™ (US) | Internal Cavity | Mayari - Birko-Flor™ & Birkibuc™ Equivalent | Match Accuracy | Fit Difference |
|---|---|---|---|---|
| US 4.5 | 237 mm | US 4.5 | 100% | 0.0 mm |
| US 5 | 241 mm | US 5 | 100% | 0.0 mm |
| US 5.5 | 244 mm | US 5.5 | 100% | 0.0 mm |
| US 6 | 247 mm | US 6 | 100% | 0.0 mm |
| US 6.5 | 251 mm | US 6.5 | 100% | 0.0 mm |
| US 7 | 254 mm | US 7 | 100% | 0.0 mm |
| US 7.5 | 257 mm | US 7.5 | 100% | 0.0 mm |
| US 8 | 261 mm | US 8 | 100% | 0.0 mm |
| US 8.5 | 264 mm | US 8.5 | 100% | 0.0 mm |
| US 9 | 271 mm | US 9 | 100% | 0.0 mm |
| US 9.5 | 274 mm | US 9.5 | 100% | 0.0 mm |
| US 10 | 277 mm | US 10 | 100% | 0.0 mm |
| US 10.5 | 281 mm | US 10.5 | 100% | 0.0 mm |
| US 11 | 284 mm | US 11 | 100% | 0.0 mm |
Related Comparisons
birkenstock ComparisonGizeh - Birko-Flor™ & Birkibuc™ vs Mayari Oiled LeatherView Sizing Comparisonbirkenstock ComparisonMayari - Birko-Flor™ & Birkibuc™ vs Mayari Oiled LeatherView Sizing ComparisonDirect RivalryMayari - Birko-Flor™ & Birkibuc™ vs Hailee SandalView Sizing ComparisonDirect RivalryMayari - Birko-Flor™ & Birkibuc™ vs Ora Recovery FlipView Sizing Comparison
Frequently Asked Questions
How does the Gizeh - Birko-Flor™ & Birkibuc™ size compare to the Mayari - Birko-Flor™ & Birkibuc™?
Both shoes share a very similar length profile. We recommend ordering your standard size in both. The Gizeh - Birko-Flor™ & Birkibuc™ has an internal fit offset of 4mm compared to 4mm for the Mayari - Birko-Flor™ & Birkibuc™.
Do these shoes fit wide feet comfortably?
The Gizeh - Birko-Flor™ & Birkibuc™ has a standard medium width profile, while the Mayari - Birko-Flor™ & Birkibuc™ is standard medium.