255/40R18 Compatible Tire Sizes

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255/40R18 Specifications

Recommended Rim Width
7–9.5 in
Measuring: 8 in
7" 9.5"
Overall Diameter
66.1 cm
26.0 in
Sidewall Height
10.2 cm
4.0 in
Visible Sidewall
8.5 cm
3.3 in
Closest Match per Treadwidth See all 16 sizes →
Tire Size% Diff@ 60 mph
245/40R18-1.2%59.3 mph
255/40R18Original+0.0%60.0 mph
265/40R18+1.2%60.7 mph
275/35R18-1.7%59.0 mph
285/35R18-0.7%59.6 mph
OEM on
  • E46 BMW M3 Rear (2000–2006)
  • A90 Toyota GR Supra 2.0 Front (2021–2026)
Use the interactive lookup →

64 compatible alternatives within 3% of the original diameter, organized by wheel diameter. The closest match per tread width within each section is shown in italics. All sizes are theoretical and may not actually be produced. Click a size to verify commercial availability.

Current Tire Pricing

TirePrice / Tire
Original Size255/40R18
Bridgestone Potenza RE-71RZExtreme Performance Summer$310.99Tire Rack →
Bridgestone Potenza RE-71RSExtreme Performance Summer$303.25Tire Rack →
Yokohama Advan A052Extreme Performance Summer$350.99Tire Rack →
Falken Azenis RT660+Extreme Performance Summer$318.38Tire Rack →
Continental ExtremeContact SportMax Performance Summer$258.99Tire Rack →
Michelin Pilot Sport 4SMax Performance Summer$285.99Tire Rack →
Vredestein Ultrac ProMax Performance Summer$210.53Tire Rack →
Bridgestone Potenza SportMax Performance Summer$271.18Tire Rack →
Pirelli P Zero AS Plus 3 Ultra High Performance All-Season$233.90Tire Rack →
Continental ExtremeContact DWS 06 PlusUltra High Performance All-Season$218.99Tire Rack →
Vredestein Hypertrac All SeasonUltra High Performance All-Season$210.77Tire Rack →
Bridgestone Potenza RE980AS+Ultra High Performance All-Season$205.96Tire Rack →
Michelin Pilot Sport All Season 4Ultra High Performance All-Season$244.99Tire Rack →
Vredestein Wintrac Pro+Performance Winter / Snow$216.64Tire Rack →
Alternative Size245/40R18, 245/45R18, 265/35R18, 265/40R18
Bridgestone Potenza RE-71RZExtreme Performance Summer$299.71Tire Rack →
Bridgestone Potenza RE-71RZExtreme Performance Summer$331.99Tire Rack →
Hoosier Track Attack ProExtreme Performance Summer$357.00Tire Rack →
Nankang Sportnex CR-SExtreme Performance Summer$279.00Tire Rack →
Vitour Tempesta P1 P-01RExtreme Performance Summer$304.00Tire Rack →
Yokohama Advan A052Extreme Performance Summer$335.99Tire Rack →
Falken Azenis RT660+Extreme Performance Summer$290.01Tire Rack →
BFGoodrich g-Force Rival +Extreme Performance Summer$276.27Tire Rack →
BFGoodrich g-Force Rival S 1.5Extreme Performance Summer$276.27Tire Rack →
Kumho Ecsta V730Extreme Performance Summer$219.42Tire Rack →
Michelin Pilot Sport Cup 2 (240)Extreme Performance Summer$319.99Tire Rack →
Continental ExtremeContact ForceExtreme Performance Summer$314.00Tire Rack →
Hankook Ventus R-S4Extreme Performance Summer$281.37Tire Rack →
Bridgestone Potenza RE-71RZExtreme Performance Summer$396.52Tire Rack →
Hoosier Track Attack ProExtreme Performance Summer$450.00Tire Rack →
Hoosier Track Attack ProExtreme Performance Summer$463.00Tire Rack →
Nankang Sportnex CR-SExtreme Performance Summer$363.00Tire Rack →
Vitour Tempesta P1 P-01RExtreme Performance Summer$377.00Tire Rack →
Vitour Tempesta P1 P-01RExtreme Performance Summer$406.00Tire Rack →
Yokohama Advan A052Extreme Performance Summer$426.99Tire Rack →
Yokohama Advan A052Extreme Performance Summer$421.99Tire Rack →
Falken Azenis RT660+Extreme Performance Summer$335.94Tire Rack →
Kumho Ecsta V730Extreme Performance Summer$227.90Tire Rack →
Michelin Pilot Sport Cup 2 (240)Extreme Performance Summer$417.99Tire Rack →
Hankook Ventus R-S4Extreme Performance Summer$337.42Tire Rack →
Hankook Ventus R-S4Extreme Performance Summer$316.34Tire Rack →
Continental ExtremeContact SportMax Performance Summer$225.99Tire Rack →
Continental ExtremeContact SportMax Performance Summer$229.99Tire Rack →
Michelin Pilot Sport 4SMax Performance Summer$249.99Tire Rack →
Michelin Pilot Sport 4SMax Performance Summer$253.99Tire Rack →
Michelin Pilot Sport 4Max Performance Summer$248.99Tire Rack →
Vredestein Ultrac ProMax Performance Summer$177.71Tire Rack →
Vredestein Ultrac ProMax Performance Summer$185.90Tire Rack →
Bridgestone Potenza SportMax Performance Summer$240.99Tire Rack →
Continental ExtremeContact SportMax Performance Summer$265.99Tire Rack →
Continental ExtremeContact SportMax Performance Summer$285.99Tire Rack →
Kumho Ecsta Sport SMax Performance Summer$227.76Tire Rack →
Michelin Pilot Sport 4SMax Performance Summer$291.99Tire Rack →
Michelin Pilot Sport 4SMax Performance Summer$315.99Tire Rack →
Bridgestone Potenza SportMax Performance Summer$286.47Tire Rack →
Pirelli P Zero AS Plus 3 Ultra High Performance All-Season$220.62Tire Rack →
Pirelli P Zero AS Plus 3 Ultra High Performance All-Season$229.92Tire Rack →
Continental ExtremeContact DWS 06 PlusUltra High Performance All-Season$197.99Tire Rack →
Continental ExtremeContact DWS 06 PlusUltra High Performance All-Season$197.99Tire Rack →
Vredestein Hypertrac All SeasonUltra High Performance All-Season$202.77Tire Rack →
Vredestein Hypertrac All SeasonUltra High Performance All-Season$194.77Tire Rack →
Bridgestone Potenza RE980AS+Ultra High Performance All-Season$193.73Tire Rack →
Bridgestone Potenza RE980AS+Ultra High Performance All-Season$185.58Tire Rack →
Michelin Pilot Sport All Season 4Ultra High Performance All-Season$227.99Tire Rack →
Michelin Pilot Sport All Season 4Ultra High Performance All-Season$219.99Tire Rack →
Nitto Neo GenUltra High Performance All-Season$206.00Tire Rack →
Pirelli P Zero AS Plus 3 Ultra High Performance All-Season$256.69Tire Rack →
Continental ExtremeContact DWS 06 PlusUltra High Performance All-Season$231.99Tire Rack →
Continental ExtremeContact DWS 06 PlusUltra High Performance All-Season$250.99Tire Rack →
Bridgestone Potenza RE980AS+Ultra High Performance All-Season$219.16Tire Rack →
Bridgestone Potenza RE980AS+Ultra High Performance All-Season$209.51Tire Rack →
Michelin Pilot Sport All Season 4Ultra High Performance All-Season$264.99Tire Rack →
Michelin Pilot Sport All Season 4Ultra High Performance All-Season$279.99Tire Rack →
Michelin CrossClimate2Grand Touring All-Season$289.99Tire Rack →
Michelin CrossClimate2Grand Touring All-Season$305.99Tire Rack →
Vredestein Quatrac Pro+Grand Touring All-Season$228.77Tire Rack →
Vredestein Quatrac Pro+Grand Touring All-Season$227.77Tire Rack →
Continental SecureContact AWGrand Touring All-Season$273.99Tire Rack →
Goodyear Assurance WeatherReady2Grand Touring All-Season$284.99Tire Rack →
Goodyear Assurance WeatherReady2Grand Touring All-Season$297.99Tire Rack →
Vredestein Wintrac Pro+Performance Winter / Snow$198.30Tire Rack →
Vredestein Wintrac Pro+Performance Winter / Snow$210.04Tire Rack →
Michelin Pilot Alpin PA4Performance Winter / Snow$354.11Tire Rack →
Bridgestone Blizzak IcePeakStudless Ice & Snow$264.31Tire Rack →
Bridgestone Blizzak IcePeakStudless Ice & Snow$264.04Tire Rack →
Bridgestone Blizzak WS90Studless Ice & Snow$237.55Tire Rack →
Bridgestone Blizzak WS90Studless Ice & Snow$227.36Tire Rack →
Continental VikingContact 8Studless Ice & Snow$241.99Tire Rack →
Continental VikingContact 8Studless Ice & SnowCheck PriceTire Rack →

Price availability updated June 2026. Actual prices may vary.

Tire Recommendations

Extreme Performance Summer

Track days, autocross, and maximum dry grip

Bridgestone Potenza RE-71RZ

Treadwear: 200

255/40R18 235/45R17 -1", -20mm 245/45R17 -1", -10mm 235/40R18 -20mm 235/45R18 -20mm 245/40R18 -10mm 245/45R18 -10mm 265/35R18 +10mm 275/35R18 +20mm 295/35R18 +40mm 315/30R18 +60mm 335/30R18 +80mm 235/35R19 +1", -20mm 235/40R19 +1", -20mm 245/35R19 +1", -10mm 245/40R19 +1", -10mm 255/35R19 +1" 265/35R19 +1", +10mm 275/35R19 +1", +20mm 305/30R19 +1", +50mm 325/30R19 +1", +70mm

Bridgestone Potenza RE-71RS

Treadwear: 200

255/40R18 235/45R17 -1", -20mm 245/45R17 -1", -10mm 235/40R18 -20mm 295/35R18 +40mm 235/35R19 +1", -20mm 235/40R19 +1", -20mm 245/40R19 +1", -10mm 265/35R19 +1", +10mm 275/35R19 +1", +20mm 305/30R19 +1", +50mm

Hoosier Track Attack Pro

Treadwear: 200

245/40R18 -10mm 265/35R18 +10mm 265/40R18 +10mm 275/35R18 +20mm 295/35R18 +40mm 315/30R18 +60mm 335/30R18 +80mm 245/35R19 +1", -10mm 265/30R19 +1", +10mm 265/35R19 +1", +10mm 275/35R19 +1", +20mm 295/30R19 +1", +40mm 305/30R19 +1", +50mm 315/30R19 +1", +60mm 325/30R19 +1", +70mm

Nankang Sportnex CR-S

Treadwear: 200

235/45R17 -1", -20mm 235/40R18 -20mm 245/40R18 -10mm 265/35R18 +10mm 275/35R18 +20mm 275/40R18 +20mm 295/35R18 +40mm 315/30R18 +60mm 335/30R18 +80mm 235/35R19 +1", -20mm 245/35R19 +1", -10mm 265/30R19 +1", +10mm 265/35R19 +1", +10mm 275/35R19 +1", +20mm 285/30R19 +1", +30mm 295/30R19 +1", +40mm 305/30R19 +1", +50mm 325/30R19 +1", +70mm

Vitour Tempesta P1 P-01R

Treadwear: 200

235/45R17 -1", -20mm 235/40R18 -20mm 245/40R18 -10mm 265/35R18 +10mm 265/40R18 +10mm 275/35R18 +20mm 275/40R18 +20mm 315/30R18 +60mm 235/35R19 +1", -20mm 235/40R19 +1", -20mm 245/35R19 +1", -10mm 245/40R19 +1", -10mm 255/35R19 +1" 265/35R19 +1", +10mm 275/35R19 +1", +20mm 295/30R19 +1", +40mm 305/30R19 +1", +50mm 325/30R19 +1", +70mm

Yokohama Advan A052

Treadwear: 200

255/40R18 235/45R17 -1", -20mm 235/40R18 -20mm 235/45R18 -20mm 245/40R18 -10mm 265/35R18 +10mm 265/40R18 +10mm 275/40R18 +20mm 295/35R18 +40mm 315/30R18 +60mm 235/40R19 +1", -20mm 245/35R19 +1", -10mm 255/35R19 +1" 275/35R19 +1", +20mm

Falken Azenis RT660+

Treadwear: 200

255/40R18 235/45R17 -1", -20mm 245/45R17 -1", -10mm 275/40R17 -1", +20mm 235/40R18 -20mm 245/40R18 -10mm 265/35R18 +10mm 275/35R18 +20mm 315/30R18 +60mm 245/35R19 +1", -10mm 265/35R19 +1", +10mm 275/30R19 +1", +20mm 275/35R19 +1", +20mm 305/30R19 +1", +50mm 315/30R19 +1", +60mm

BFGoodrich g-Force Rival +

Treadwear: 200

245/40R18 -10mm 275/35R18 +20mm 295/35R18 +40mm 315/30R18 +60mm 335/30R18 +80mm 275/35R19 +1", +20mm 305/30R19 +1", +50mm

BFGoodrich g-Force Rival S 1.5

Treadwear: 200

245/40R18 -10mm 275/35R18 +20mm 295/35R18 +40mm 315/30R18 +60mm 335/30R18 +80mm 275/35R19 +1", +20mm 305/30R19 +1", +50mm

Kumho Ecsta V730

Treadwear: 200

235/45R17 -1", -20mm 245/45R17 -1", -10mm 235/40R18 -20mm 245/40R18 -10mm 265/35R18 +10mm 275/35R18 +20mm 235/35R19 +1", -20mm 245/35R19 +1", -10mm 275/35R19 +1", +20mm 305/30R19 +1", +50mm

Michelin Pilot Sport Cup 2 (240)

Treadwear: 240

235/40R18 -20mm 245/40R18 -10mm 265/35R18 +10mm 275/35R18 +20mm 235/35R19 +1", -20mm 235/40R19 +1", -20mm 245/35R19 +1", -10mm 245/40R19 +1", -10mm 255/35R19 +1" 265/30R19 +1", +10mm 265/35R19 +1", +10mm 275/35R19 +1", +20mm 295/30R19 +1", +40mm 305/30R19 +1", +50mm 325/30R19 +1", +70mm

Continental ExtremeContact Force

Treadwear: 200

245/40R18 -10mm 275/35R18 +20mm 315/30R18 +60mm 335/30R18 +80mm 235/35R19 +1", -20mm 265/35R19 +1", +10mm 295/30R19 +1", +40mm 315/30R19 +1", +60mm 325/30R19 +1", +70mm

Hankook Ventus R-S4

Treadwear: 200

235/40R18 -20mm 245/40R18 -10mm 265/35R18 +10mm 265/40R18 +10mm 275/35R18 +20mm 275/40R18 +20mm 285/35R18 +30mm 305/30R19 +1", +50mm

Max Performance Summer

Spirited street driving and occasional track use

Continental ExtremeContact Sport

Treadwear: 340

255/40R18 235/45R17 -1", -20mm 245/45R17 -1", -10mm 255/45R17 -1" 275/40R17 -1", +20mm 285/40R17 -1", +30mm 235/40R18 -20mm 235/45R18 -20mm 245/40R18 -10mm 245/45R18 -10mm 265/35R18 +10mm 265/40R18 +10mm 275/35R18 +20mm 275/40R18 +20mm 295/35R18 +40mm 235/35R19 +1", -20mm 235/40R19 +1", -20mm 245/35R19 +1", -10mm 245/40R19 +1", -10mm 255/35R19 +1" 265/35R19 +1", +10mm 275/30R19 +1", +20mm 275/35R19 +1", +20mm 285/30R19 +1", +30mm 295/30R19 +1", +40mm 305/30R19 +1", +50mm 325/30R19 +1", +70mm

Kumho Ecsta Sport S

Treadwear: 260

265/35R18 +10mm 235/35R19 +1", -20mm 245/35R19 +1", -10mm 255/35R19 +1" 265/30R19 +1", +10mm 265/35R19 +1", +10mm 275/35R19 +1", +20mm 285/30R19 +1", +30mm

Michelin Pilot Sport 4S

Treadwear: 300

255/40R18 235/45R17 -1", -20mm 245/45R17 -1", -10mm 265/40R17 -1", +10mm 235/40R18 -20mm 235/45R18 -20mm 245/40R18 -10mm 245/45R18 -10mm 265/35R18 +10mm 265/40R18 +10mm 275/35R18 +20mm 285/35R18 +30mm 235/35R19 +1", -20mm 235/40R19 +1", -20mm 245/35R19 +1", -10mm 245/40R19 +1", -10mm 255/35R19 +1" 265/30R19 +1", +10mm 265/35R19 +1", +10mm 275/30R19 +1", +20mm 275/35R19 +1", +20mm 285/30R19 +1", +30mm 295/30R19 +1", +40mm 305/30R19 +1", +50mm 315/30R19 +1", +60mm 325/30R19 +1", +70mm

Michelin Pilot Sport 4

Treadwear: 320

235/40R18 -20mm 235/45R18 -20mm 245/40R18 -10mm 245/40R19 +1", -10mm 255/35R19 +1"

Vredestein Ultrac Pro

Treadwear: None

255/40R18 235/40R18 -20mm 235/45R18 -20mm 245/40R18 -10mm 245/45R18 -10mm 235/35R19 +1", -20mm 235/40R19 +1", -20mm 245/35R19 +1", -10mm 245/40R19 +1", -10mm 255/35R19 +1" 265/35R19 +1", +10mm 275/30R19 +1", +20mm 275/35R19 +1", +20mm

Bridgestone Potenza Sport

Treadwear: 300

255/40R18 235/40R18 -20mm 235/45R18 -20mm 245/40R18 -10mm 265/35R18 +10mm 275/35R18 +20mm 275/40R18 +20mm 235/35R19 +1", -20mm 235/40R19 +1", -20mm 245/35R19 +1", -10mm 245/40R19 +1", -10mm 255/35R19 +1" 265/30R19 +1", +10mm 265/35R19 +1", +10mm 275/35R19 +1", +20mm 285/30R19 +1", +30mm 295/30R19 +1", +40mm 305/30R19 +1", +50mm

Ultra High Performance All-Season

Year-round daily driving with performance capability

Pirelli P Zero AS Plus 3

Treadwear: 560

255/40R18 235/40R18 -20mm 235/45R18 -20mm 245/40R18 -10mm 245/45R18 -10mm 265/35R18 +10mm 235/35R19 +1", -20mm 235/40R19 +1", -20mm 245/40R19 +1", -10mm 255/35R19 +1" 275/35R19 +1", +20mm

Continental ExtremeContact DWS 06 Plus

Treadwear: 560

255/40R18 235/45R17 -1", -20mm 235/50R17 -1", -20mm 245/45R17 -1", -10mm 245/50R17 -1", -10mm 255/45R17 -1" 235/40R18 -20mm 235/45R18 -20mm 245/40R18 -10mm 245/45R18 -10mm 265/35R18 +10mm 265/40R18 +10mm 275/35R18 +20mm 275/40R18 +20mm 285/35R18 +30mm 295/35R18 +40mm 235/35R19 +1", -20mm 235/40R19 +1", -20mm 245/35R19 +1", -10mm 245/40R19 +1", -10mm 255/35R19 +1" 265/30R19 +1", +10mm 265/35R19 +1", +10mm 275/30R19 +1", +20mm 275/35R19 +1", +20mm 285/30R19 +1", +30mm

Vredestein Hypertrac All Season

Treadwear: 500

255/40R18 235/45R17 -1", -20mm 235/50R17 -1", -20mm 245/45R17 -1", -10mm 235/40R18 -20mm 245/40R18 -10mm 245/45R18 -10mm 235/35R19 +1", -20mm 235/40R19 +1", -20mm 245/35R19 +1", -10mm 245/40R19 +1", -10mm 255/35R19 +1" 275/35R19 +1", +20mm

Bridgestone Potenza RE980AS+

Treadwear: 500

255/40R18 235/45R17 -1", -20mm 245/45R17 -1", -10mm 235/40R18 -20mm 235/45R18 -20mm 245/40R18 -10mm 245/45R18 -10mm 265/35R18 +10mm 265/40R18 +10mm 275/35R18 +20mm 235/35R19 +1", -20mm 245/35R19 +1", -10mm 245/40R19 +1", -10mm 255/35R19 +1" 275/35R19 +1", +20mm 285/30R19 +1", +30mm

Michelin Pilot Sport All Season 4

Treadwear: 540

255/40R18 235/45R17 -1", -20mm 235/50R17 -1", -20mm 245/45R17 -1", -10mm 245/50R17 -1", -10mm 255/45R17 -1" 275/40R17 -1", +20mm 235/40R18 -20mm 235/45R18 -20mm 245/40R18 -10mm 245/45R18 -10mm 265/35R18 +10mm 265/40R18 +10mm 275/35R18 +20mm 275/40R18 +20mm 285/35R18 +30mm 235/35R19 +1", -20mm 235/40R19 +1", -20mm 245/35R19 +1", -10mm 245/40R19 +1", -10mm 255/35R19 +1" 265/35R19 +1", +10mm 275/35R19 +1", +20mm 285/30R19 +1", +30mm

Nitto Neo Gen

Treadwear: 280

235/40R18 -20mm 245/40R18 -10mm 245/35R19 +1", -10mm

Grand Touring All-Season

Comfortable, long-wearing all-season tires for daily driving

Michelin CrossClimate2

Treadwear: 640

235/50R17 -1", -20mm 245/45R17 -1", -10mm 235/40R18 -20mm 235/45R18 -20mm 245/40R18 -10mm 245/45R18 -10mm 235/40R19 +1", -20mm

Vredestein Quatrac Pro+

Treadwear: 400

235/45R17 -1", -20mm 245/45R17 -1", -10mm 235/40R18 -20mm 235/45R18 -20mm 245/40R18 -10mm 245/45R18 -10mm 235/35R19 +1", -20mm 235/40R19 +1", -20mm 245/35R19 +1", -10mm 245/40R19 +1", -10mm 255/35R19 +1" 275/35R19 +1", +20mm

Continental SecureContact AW

Treadwear: 700

235/45R18 -20mm 245/45R18 -10mm 235/40R19 +1", -20mm

Goodyear Assurance WeatherReady2

Treadwear: 700

235/40R18 -20mm 235/45R18 -20mm 245/40R18 -10mm 245/45R18 -10mm 235/40R19 +1", -20mm 245/40R19 +1", -10mm

How to Use This Information

  • Stay within 3%: All listed tire sizes maintain proper speedometer accuracy and vehicle dynamics
  • Consider aspect ratio: Lower numbers mean shorter sidewalls (better handling, harsher ride)
  • Treadwidth matters: Wider tires typically offer more grip but may reduce fuel economy
  • Check clearance: Ensure your vehicle has adequate wheel well and suspension clearance

Want to look up compatibility for a different tire size? Use our tire size compatibility lookup