I just bought a set of 20 in staggered wheels and am trying to decide on tires. I have been looking at online tire size calculators and wanted to know exactly how they work.

I am putting in 305/35/20 and these are the dimensions it comes back with.

Sidewall: 4.20 in
Radius: 14.20 in
Diameter: 28.41 in
Circumf: 89.24 in
Revs/mile: 710.01

According to this the diameter will be 28.41 but I only have 27.5 in from the ground to the bottom of the fender well. Will these fit?? I see other guys running this tire so just wanting to double check they will work before I spend the cash. Thanks for any help you can send my way.

Oh yeah the wheels are 20x9 30mm offset and 20x10 45 mm offset.

Charles