Thanks everyone for the valuable advice. Here is what I came up with, what do you think? Am I good to go?

Tire Size Comparison
Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
285/35-22 3.9in 14.9in 29.9in 93.8in 676 0.0%
275/45-20 4.9in 14.9in 29.7in 93.4in 678 -0.4%