1. Trace your foot on paper while standing.
2. Measure from toe to heel.
3. Take your foot length measurement and add approx. 10mm. That is your shoe length.
We recommend taking ½ size more than your usual size. For1. 
US 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11
UK 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5
EUR 36 36⅔ 37⅓ 38 38⅔ 39⅓ 40 40⅔ 41⅓ 42 42⅔
Heel to Toe (cm) 23 23.5 24 24.5 25 25.5 25.75 26.25 26.5 27 27.5

We recommend you add a 1/2 size up from your normal size