The equivalent of a men's size 7 shoe is a boys' size 6.5. Both of these sizes are made for the same foot length according to shoe size conversion charts.
According to the shoe size converter from Zappos, a popular online shoe retailer, men's size 7 shoes are made for feet that measure 9.625 inches long. This is equivalent to a kids' size 6.5, which also measures 9.625 inches long.
When purchasing shoes, it is helpful to remember that shoe sizes are only approximate indicators. They do not account for the height and width of feet, so they are not an exact gauge of fit.