Finding the right size for boys ties can seem like a struggle, but it is quite easy to do. Whether choosing a clip-on tie or a need-to-be-tied version, the same measurement can be used. Simply measure the distance from the top of the collar to about the center of the boy’s belt line and that is the size of boy’s tie that will fit perfectly. When using prep ties—the kind that has to be tied—the measurement will be is the number of inches left over after tying the tie. Depending on how it is tied, the knot can be adjusted to fit properly.