305/40R20 Tires

305/40R20 tires have a diameter of 29.6", a section width of 12.0", and a wheel diameter of 20". The circumference is 93.0" and they have 682 revolutions per mile.
Generally they are approved to be mounted on 10-12" wide wheels.
Specs may vary by manufacturer. learn more

Visualizer / Alternate Sizes

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Visualizer

12.0"

29.6"

93.0"

20"

4.8"

682 Revs/Mile

305/40R20

Diameter : 29.6"

Width : 12.0"

Wheel : 20" x 10-12"

Sidewall : 4.8"

Circum. : 93.0"

Revs/Mile : 682

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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