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275/45R18 Tires

275/45R18 tires have a diameter of 27.7", a section width of 10.8", and a wheel diameter of 18". The circumference is 87.1" and they have 727 revolutions per mile.
Generally they are approved to be mounted on 8.5-10.5" wide wheels.
Specs may vary by manufacturer. learn more
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275/45R18 Tire Front
10.8"
27.7"
275/45R18 Tire Side
18 Inch Wheel
Circumference
87.1"
18"
4.9"
727 Revs/Mile
275/45R18
Diameter : 27.7"
Width : 10.8"
Wheel : 18" x 8.5-10.5"
Sidewall : 4.9"
Circum. : 87.1"
Revs/Mile : 727

Upsizing Wheels or Tires?

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Kumho Tires
Kumho Majesty 9 Solus TA91 275/45R18
Majesty 9 Solus TA91
All Season | 107W XL
Avg. $206.00
 Grand Touring  
45K Miles
Continental Tires
Continental ContiSportContact 5 275/45R18
ContiSportContact 5
Summer | 103Y SL
Avg. $275.00
 Supreme Performance  
Bridgestone Tires
Bridgestone Potenza Sport 275/45R18
Potenza Sport
Summer | 107Y XL
Avg. $314.67
 Supreme Performance  
Pirelli Tires
Pirelli P Zero 275/45R18
P Zero
Summer | 103Y SL
Avg. $362.60
 Supreme Performance  
Pirelli Tires
Pirelli P Zero 275/45R18
P Zero
Summer | 107Y XL
Avg. $366.83
 Supreme Performance  
Pirelli Tires
Pirelli Cinturato P7 Run Flat 275/45R18
Cinturato P7 Run Flat
Summer | 103W SL (RunFlat)
Avg. $399.25
 Ultra High Performance  
Mickey Thompson Tires
Mickey Thompson ET Street S/S 275/45R18
ET Street S/S
Street/Racetrack | (P)NA NA
Avg. $452.39