How to buy shoes in the right size online

Last updated: 2026-08-13

The biggest issue buying shoes online is size, because the same number differs between brands and numbering systems (EU/US/UK). The fix is to measure your foot length in cm and compare to a size chart.

How to measure your foot

  • Stand on a flat sheet of paper and trace around your foot.
  • Measure the length from the longest toe to the heel in cm.
  • Measure both feet and use the larger; measure at the end of the day when the foot is slightly larger.

Rough chart (foot length → EU size)

  • 24.5 cm ≈ 39
  • 25.5 cm ≈ 40–41
  • 26.5 cm ≈ 42
  • 27.5 cm ≈ 43–44
  • 28.5 cm ≈ 45–46

For used shoes, ask about the insole and outsole condition and any wear. For branded sneakers, check the logo and stitching accuracy, the original box, and the barcode — a very low price for a famous brand is a sign of a fake.

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