Anyone know the tracking settings for a coupe turbo in mm? the reason i need it in mm and not in °Deg because my tracking guages got damaged while i was away and for a tempulary while i have made some guages that measure the distance between the fronts of both front wheel rims and then the distance of the back of both front wheel rims and it will give me either a toeing in reading e.g -2mm or a toeing out reading e.g +3mm so i need to know what to set it to

Front the manual that i had with my deg guages the tracking should set to toe in 0° - 0°20'

Anyone know how to convert it to mm or know the right mm? i will probs jsut set it very close to 0mm and that way will be near enough. cheers