border width and height units of measure

[MajorDan]

sorry if this is a 'too simple' question but I can't find an answer anywhere in the documentation :
for " convert <file> -border 5x5 .." for instance, what is the unit of measure of the height and width of border - 5 whats ?
I have found that bigger numbers make wider borders but I can't figure out the unit type.

[snibgo]

The unit is "pixels". Pretty much everything in IM is measured in pixels.

[MajorDan]

thanks. I was coming to that conclusion. much appreciated.