A little over 5 cm. An option exits for horizontal carry which limits the belt width to about 3 cm.
thanks for that pic! after reading your first post i had a look at the leatherman website but could not find any infos reg. belt strap.... . my webbing belt measures about 5.7cm so it might be a tight fit-- probably best to find a shop selling leatherman tools and try if it fits
... . and hope that the victorinox pouch holds until then (shame that the rivets are not stainless- for me one more example of ""swissmade-- OVERRATED""...)!
magazine pouches might be a bit hard to come by in japan (online maybe, but that leaves me with shipping costs....) but i'll keep that in mind as an alternative!
edit: without realizing it at the time of posting- seems that this was my 500th post...