285/40R21 Tires

285/40R21 tires have a diameter of 30.0", a section width of 11.2", and a wheel diameter of 21". The circumference is 94.1" and the revolutions per mile are 673.
Specs may vary by manufacturer. learn more

Visualizer / Alternate Sizes

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Visualizer

11.2"

30.0"

94.1"

21"

4.5"

673 Revs/Mile

285/40R21

Diameter : 30.0"

Width : 11.2"

Wheel : 21"

Sidewall : 4.5"

Circum. : 94.1"

Revs/Mile : 673

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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