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315/40R18 Tires

315/40R18 tires have a diameter of 27.9", a section width of 12.4", and a wheel diameter of 18". The circumference is 87.7" and the revolutions per mile are 723.
Specs may vary by manufacturer. learn more
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315/40R18 Tire Front
12.4"
27.9"
315/40R18 Tire Side
18 Inch Wheel
Circumference
87.7"
18"
5.0"
723 Revs/Mile
315/40R18
Diameter : 27.9"
Width : 12.4"
Wheel : 18"
Sidewall : 5.0"
Circum. : 87.7"
Revs/Mile : 723

Upsizing Wheels or Tires?

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Select a Size to Compare Prices on Available Tires

315/40R18 Street/Racetrack Tires

Hoosier Tires
 Hoosier R7 315/40R18
R7
Avg. $392.05
Nitto Tires
 Nitto NT05R Drag Radial 315/40R18
NT05R Drag Radial
Avg. $320.62

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