How many inches tall are tires 265 70 19.5?

first you need to under stand to read the tires number

265 / 70 meaning

265 : the wide if the tires is 26.5 cm not the tall

70 : 70% of the 265 is the tall of the profile of the tires 185.5

19.5 : is the diameters of the wheel without tires in inch

so the tall will be 19.5 + 7.4 "185.5 in inch " = 38 inches