Powerlifting Belt Measurements

Unfortunately I’ve left my belt halfway across the world and need a new one, I currently have an xs 10mm strength shop belt i tend to wear it on the loosest two settings (I have lost a bit of weight since getting to the uk though). I want an sbd belt but can’t work out the size and can’t measure my old belt

If someone has an xs strength shop belt could they measure the length to the loosest hole so I can compare this to sbd? Would be greatly appreciated