Find the right boot size

Remove the shoe from your right, (or longest), foot. Measure with sock if you want space, no sock for a tighter fit. Place a blank sheet of paper against the wall and stand on it with your heel against the wall. Mark straight down from your longest toe on the paper. Measure from the edge of the paper against the wall to the line marked on the paper,

US EURO MILLIMETERS INCHES
12j 30 188 7.25
13j 31 195 7.5
1 32 202 8
1.5 33 209 8.25
2 34 216 8.50
3 35 223 8.75
4 36 230 9
5 37 237 9.25
6 38 244 9.5
7 39 251 9.75
8 40 258 10
9 41 265 10.5
10 42 274 10.75
11 43 281 11
12 44 288 11.25
13 45 295 11.5
14 46 302 11.75
15 47 309 1