AU to US Shoe Size for Kids
5.5 AU size = 6.5 US size ยท cohort-based size mapping for selected cohort
Direct Answer
5.5 AU size equals 6.5 US size
This result uses the selected selected cohort cohort as the profile basis.
For 3 AU size, the selected cohort cohort returns 4 US size under the same mapping assumptions.
Converter Calculator
6.5 US size
SwitchExplanation
AU converts to US by first mapping AU to millimeters, then mapping millimeters to US. Cohort profile fixed: Kids.
From AU size to US size, results depend on the selected selected cohort cohort and stay consistent with that cohort across table rows and calculator input.
Keep the same cohort in both directions to avoid mixing shoe-size systems that use different wearer-group mappings.
Common Conversion Values
| AU size | US size |
|---|---|
| 3 | 4 |
| 4.5 | 5.5 |
| 5.5 | 6.5 |
| 6.5 | 7.5 |
| 8 | 9 |
Frequently Asked Questions
How can I convert back from US size to AU size?
Use the mirror US size to AU size route; it applies the inverse relationship for the opposite direction with the same assumptions.
Does this page use cohort-specific mapping?
Yes. This page is fixed to Kids.
What formula is used for AU size to US size?
The converter applies the formula defined for AU size to US size, then renders rounded output for the direct answer and common-value rows.