In general, Converse fit bigger than your average shoe. On their site, the brand states that Converse fit a half size bigger but some people say to go down a full size, especially if you wear a larger size to start with.

How much should I size down in Converse?

Chuck Taylors Converse tend to run half a size larger than a standard shoe for both men and women. Consider sizing a half size down if you are in doubt.

Do converse run bigger than vans?

If you've worn Converse Chucks, and like how they fit, you may need to size up Vans a half size to get that same fit. ... As you can see, the Converse Chucks are about a half size longer than the Vans Sk8-Hi shoes.