When computing tire size, keep in mind that different systems of measurement may need conversion

https://canvas.instructure.com/eportfolios/3113141/tire_calculator_sizewrsh063/Tire_Size_Calculations_Helped_Make_Simple_A_Newbies_Quick_guide_to_Using_a_Tire_Size_Calculator

When determining tire size, keep in mind that various devices of dimension may require conversion