is there a difference between "normal" kilts

[McMurdo]

Yes there are, generally speaking a traditional kilt is measured at your navel or True Waist, a contemporary kilt generally is measured at your waist (where you wear your jeans). Of course every kilt maker has their own way of measuring, the very best thing to do is to get your kilt maker to measure you. If you can not do that, many kilt makers have measuring directions on their websites.

[JolyStNicholas]

Yes there are, generally speaking a traditional kilt is measured at your navel or True Waist, a contemporary kilt generally is measured at your waist (where you wear your jeans). Of course every kilt maker has their own way of measuring, the very best thing to do is to get your kilt maker to measure you. If you can not do that, many kilt makers have measuring directions on their websites.

Couldn't have said it better meself.

Another answer handled in true XMarks fashion! Well done laddie!