Bro, just google about tire size comparison. There is a rule that no bigger or smaller then 3% in term of diameter if you care about.

https://tiresize.com/calculator/

If you want to upgrade to bigger rims. You also need to know the rims width & offset to match the wider tires and also to clear from the brake calipers.

My personal advice dont direct upgrade the width too much from 185 to 205/215. Jump to 195 first as wider tires does impact fuel economy. If i am you, i would like to get 195/55/R15 tires and maybe get a wider sport rim 6.5" to 7" wide to match the 195 size. 15 inch tires & sport rims is more affordable and choices in market.

https://www.tyresizecalculator.com/tyre-whe...idth-calculator

This post has been edited by littlefire: Jul 15 2020, 05:05 PM