🚘 Transportation
Tire Size Calculator
Pull the three numbers off your sidewall (e.g. 225/45R17) and we'll compute the rolling diameter and circumference.
mm
%
in
Result will appear here
計算式
diameter = rim + 2 × (width × aspect% ÷ 25.4)
🚘 Transportation
Pull the three numbers off your sidewall (e.g. 225/45R17) and we'll compute the rolling diameter and circumference.
Result will appear here
diameter = rim + 2 × (width × aspect% ÷ 25.4)