Shoe Width Calculator
Find your shoe width from foot and ball-of-foot measurements.
Converts between narrow (AA), medium (D/M), wide (EE), and extra-wide sizes for men and women.
Shoe width fitting is one of the most overlooked aspects of footwear. An incorrectly fitted width causes bunions, blisters, numbness, and long-term joint problems — even if the length feels right.
Width measurement method:
- Trace your foot on paper while standing (weight-bearing)
- Measure the widest part across the ball of the foot in inches
- Compare to your shoe length size using the width chart
US shoe width designations (narrowest to widest):
2A (AA) → A → B → C/D → E → 2E (EE) → 3E → 4E → 5E → 6E
For women: B = standard / medium For men: D = standard / medium
Width to measurement guide (men’s, size 10 reference):
| Width Code | Measurement | Fit Description |
|---|---|---|
| 2A (Narrow) | 3.4" | Very narrow foot |
| B | 3.6" | Narrow |
| D (Medium) | 4.0" | Standard |
| 2E (Wide) | 4.4" | Wide foot |
| 4E (X-Wide) | 4.8" | Extra wide |
Worked example: A man with a size 10 length and 4.5" ball-of-foot width:
- Standard D width = 4.0" → too narrow
- 2E width = 4.4" → still slightly snug
- 4E width = 4.8" → best fit
Signs your width is wrong:
- Shoe bulges or wrinkles on the side (too wide)
- Toes feel numb or cramped sideways (too narrow)
- Heel slips despite correct length (too wide overall)
- Laces won’t close without pulling (too narrow)
European and UK shoes typically do not use width codes — they use last shapes (slim, regular, wide). When ordering internationally, always check the brand’s specific width grading.