AU to UK Shoe Size for Kids
5.5 AU size = 5.5 UK size ยท cohort-based size mapping for selected cohort
Direct Answer
5.5 AU size equals 5.5 UK size
This result uses the selected selected cohort cohort as the profile basis.
For 3 AU size, the selected cohort cohort returns 3 UK size under the same mapping assumptions.
Converter Calculator
5.5 UK size
SwitchExplanation
AU converts to UK by first mapping AU to millimeters, then mapping millimeters to UK. Cohort profile fixed: Kids.
For AU size to UK size, the active selected cohort cohort determines the conversion constants applied to every value.
Keep the same cohort in both directions to avoid mixing shoe-size systems that use different wearer-group mappings.
Common Conversion Values
| AU size | UK size |
|---|---|
| 3 | 3 |
| 4.5 | 4.5 |
| 5.5 | 5.5 |
| 6.5 | 6.5 |
| 8 | 8 |
Frequently Asked Questions
How do I reverse AU size to UK size?
Use the mirror UK 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.
How does this converter compute AU size to UK size?
The converter applies the formula defined for AU size to UK size, then renders rounded output for the direct answer and common-value rows.