I know nothing about tires (and had forgotten that we spell it tyre here in the UK), but I do know that a lot of people mix imperial and decimal measurements. D

I know nothing about tires (and had forgotten that we spell it tyre here in the UK), but I do know that a lot of people mix imperial and decimal measurements. Do you account for that, is it not an issue with tires, or should you add in a either a unit of measurement or the ability to enter measurements in multiple units?