That depends on what the aspect ratio is. The 285 is just the width of the tire in millimeters. A 285/60 series is not the same size tire as a 285/50 series.
Which Tire is bigger you ask? The 30X9.50r15 is larger than the 16 in tire in width. To get the width of the 15 inch tire you need to multiply 30 by 9.50. This will give you a total width of 285. So the width of the 15 inch tire is 285mm wide. The width of the 16 inch tire is 225. So there is a difference of 60 mm. I am not familiar with the Jeep Cherokee. I have seen a few people place 255/70r/16s on their jeep cherokees. I think 285 mm wide tires might be a little too wide. If you decide to lift this jeep, then you should not have a problem placing a 285 mm wide tire on it. For more info on reading a tire sidewall check out the following link. http://www.dummies.com/WileyCDA/DummiesArticle/Reading-a-Tire-Sidewall.id-2667.html
The difference between a 285/65R18 and a 275/65R18 is height and width The first 3 digit number is the width measured in millimeters, 285 millimeters and 275 millimeters wide across the tread. The middle two digit number is an aspect ratio number or a percentage of the width. For example if the tread is 285 millimeters wide, than the aspect ratio of 65 is 185.25 millimeters. Meaning the side wall of the tire is 185.25 millimeters tall. 65 percent of 285 millimeters is 185.25 millimeters. So a 275 millimeter tire with the same aspect ratio of 65 will be a narrower and shorter tire, because 65 percent of 275 is less than 65 percent of 285. The R18 means that the tire is of radial construction and the tire is made to be mounted on a 18 inch wheel or rim.
The 33 is measured in inches, the 285 is measured in millimeter's.
A 285 60R 17 will replace that
No, a 245 tire is 245 mm wide. A 275 is 275 mm wide.
32.72
285 miles
I wonder if it might be 285 gallons!
285/35 - 20"
285/65
Of course you can.