Tire sizes / 245/45R21

245/45R21 Tire Size

245/45R21

Dimensions

Overall diameter29.7 in (754 mm)
Section width9.6 in (245 mm)
Sidewall height4.3 in (110 mm)
Wheel diameter21 in
Revolutions per mileabout 679

Nominal figures calculated from the size code. Real tires vary a little by brand and tread depth.

Cars that came with 245/45R21 tires

Factory fitment only, from owner's manuals. Many other cars can run this size; check with a tire shop before changing size.