TIRE SIZE CALCULATOR

To calculate:
Tire Width: Section width divided by 25.4 (Ex: 235 / 25.4 = 9.25")
Section Height: Tire width times aspect ratio (Ex: 9.25" x 70% = 6.48")
Overall Diameter: Section height times 2 plus rim diameter (Ex: (6.48" x 2) + 15 = 27.96")

Therefore, a 235/70R15 is approximately 28" tall x 9.25" wide.

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