Tires Size 245/40R18
Dimensions, specs, and every size 245/40R18 tire currently in stock
25.72"
653 mm · calculated
245 mm
9.65 inches
3.86"
98 mm · 40% profile
18"
457.2 mm
Showing 11 to 20 of 21 products
245/40R18 Specifications
Read directly from the size code. Load index, speed rating, and rim width range vary by model.
| Specification | Imperial | Metric |
|---|---|---|
| Section width | 9.65 in | 245 mm |
| Aspect ratio | 40% | — |
| Sidewall height | 3.86 in | 98 mm |
| Overall diameter (calculated) | 25.72 in | 653 mm |
| Wheel / rim diameter | 18 in | 457.2 mm |
| Construction | Radial | — |
What does 245/40R18 mean?
Reading the code on your sidewall
245 mm
The distance from sidewall to sidewall across the tire's widest point.
40% profile
The sidewall stands 40% of the section width, which is 98 mm on this size.
Radial
The body plies run across the tire at right angles to the direction of travel.
18 in
Fits a wheel measuring 18 inches across.
245/40R18 Questions & Answers
Dimensions and fitment guidelines for size 245/40R18
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Shop Our Collection
Explore premium tires, wheels, and fitments from top brands
Atlander XSPORT-76 165/80R13
Atlander XSPORT-76 165/80R13
Armstrong Blu-trac HP 245/50R18
Armstrong Blu-trac HP 245/50R18
Cooper CS5 Ultra Touring Blk Special 215/60R15
Cooper CS5 Ultra Touring Blk Special 215/60R15
Gladiator Armor 4S All-weather + EV Performance 255/50R20
Gladiator Armor 4S All-weather + EV Performance 255/50R20
Zeetex HP5000 Max 265/35R20
Zeetex HP5000 Max 265/35R20
Roadtrack Terrena UHP 245/40ZR19
Jk tyre Elanzo Touring A/S P215/70R16
Jk tyre Elanzo Touring A/S P215/70R16
Travelstar Ecopath M/T 80PSI 33X12.50R22LT
Trailer master All Position 225/70R19.5
Trailer master All Position 225/70R19.5
Toyo Open Country A/T III 35X13.50R20LT
Toyo Open Country A/T III 35X13.50R20LT
Lionhart Lionclaw H/T Blk P235/55R18
Lionhart Lionclaw H/T Blk P235/55R18
Fortune Tormenta H/T FSR305 285/45R22
Fortune Tormenta H/T FSR305 285/45R22
Pegasus Atx 4S A/T LT245/75R17
Pegasus Atx 4S A/T LT245/75R17
Toyo Open Country M/T /12 35X12.50R20
Toyo Open Country M/T /12 35X12.50R20
Roadtrack Terrena UHP 255/40ZR19
Atlander Roverstar H/T 235/65R17
Atlander Roverstar H/T 235/65R17
Grand prix Touring RS 225/50R18
Grand prix Touring RS 225/50R18
Armstrong Blu-trac HP 185/55R15
Armstrong Blu-trac HP 185/55R15
Rbp Repulsor A/T Plateau LT295/70R18
Rbp Repulsor A/T Plateau LT295/70R18
Atlander XSPORT-76 165/80R13
Atlander XSPORT-76 165/80R13
Armstrong Blu-trac HP 245/50R18
Armstrong Blu-trac HP 245/50R18
Cooper CS5 Ultra Touring Blk Special 215/60R15
Cooper CS5 Ultra Touring Blk Special 215/60R15
Gladiator Armor 4S All-weather + EV Performance 255/50R20
Gladiator Armor 4S All-weather + EV Performance 255/50R20
Zeetex HP5000 Max 265/35R20
Zeetex HP5000 Max 265/35R20
Roadtrack Terrena UHP 245/40ZR19
Jk tyre Elanzo Touring A/S P215/70R16
Jk tyre Elanzo Touring A/S P215/70R16
Travelstar Ecopath M/T 80PSI 33X12.50R22LT
Trailer master All Position 225/70R19.5
Trailer master All Position 225/70R19.5
Toyo Open Country A/T III 35X13.50R20LT
Toyo Open Country A/T III 35X13.50R20LT
Lionhart Lionclaw H/T Blk P235/55R18
Lionhart Lionclaw H/T Blk P235/55R18
Fortune Tormenta H/T FSR305 285/45R22
Fortune Tormenta H/T FSR305 285/45R22
Pegasus Atx 4S A/T LT245/75R17
Pegasus Atx 4S A/T LT245/75R17
Toyo Open Country M/T /12 35X12.50R20
Toyo Open Country M/T /12 35X12.50R20
Roadtrack Terrena UHP 255/40ZR19
Atlander Roverstar H/T 235/65R17
Atlander Roverstar H/T 235/65R17
Grand prix Touring RS 225/50R18
Grand prix Touring RS 225/50R18
Armstrong Blu-trac HP 185/55R15
Armstrong Blu-trac HP 185/55R15
Rbp Repulsor A/T Plateau LT295/70R18
Rbp Repulsor A/T Plateau LT295/70R18