345/30R21 Tires

345/30R21 tires have a diameter of 29.1", a section width of 13.6", and a wheel diameter of 21". The circumference is 91.5" and they have 692 revolutions per mile.
Specs may vary by manufacturer. learn more

Visualizer / Alternate Sizes

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13.6"

29.1"

91.5"

21"

4.1"

692 Revs/Mile

345/30R21

Diameter : 29.1"

Width : 13.6"

Wheel : 21"

Sidewall : 4.1"

Circum. : 91.5"

Revs/Mile : 692

Upsizing Wheels or Tires?

When searching for the perfect tire for your vehicle you need options. Click the "Alternate Sizes" button to see a list of similar tire sizes. You can then change the wheel size to see alternate sizes on a different diameter wheel.

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