How to Read Tire Size: What 265/70R16 Actually Means

Last updated: October 2026

Every tire carries a code like 265/70R16 on its sidewall. Once you can read it, you can compare tires and spot the wrong fitment.

Breaking down 265/70R16

265 is the section width in millimeters. 70 is the aspect ratio: sidewall height as a percentage of width. R is radial construction. 16 is the wheel diameter in inches.

Why trims differ

A base Tacoma SR rides on 245/75R16, a Limited on 265/60R18. Check yours on 2022 Tacoma tire size or 2023 CR-V tire size.