EU to UK Shoe Size for Unisex
40 EU size = 6.5 UK size ยท cohort-based size mapping for selected cohort
Direct Answer
40 EU size equals 6.5 UK size
This result uses the selected selected cohort cohort as the profile basis.
For 37 EU size, the selected cohort cohort returns 4 UK size under the same mapping assumptions.
Converter Calculator
6.5 UK size
SwitchExplanation
EU converts to UK by first mapping EU to millimeters, then mapping millimeters to UK. Cohort profile fixed: Unisex.
EU size to UK size is cohort-bound here: the selected selected cohort cohort controls the mapping used by calculator and reference table.
Keep the same cohort in both directions to avoid mixing shoe-size systems that use different wearer-group mappings.
Common Conversion Values
| EU size | UK size |
|---|---|
| 37 | 4 |
| 39 | 5.5 |
| 40 | 6.5 |
| 42 | 8 |
| 43 | 9 |
Frequently Asked Questions
How do I reverse EU size to UK size?
Use the mirror UK size to EU 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 Unisex.
How does this converter compute EU size to UK size?
The converter applies the formula defined for EU size to UK size, then renders rounded output for the direct answer and common-value rows.