Tires Size 235/40R18
Dimensions, specs, and every size 235/40R18 tire currently in stock
25.4"
645 mm · calculated
235 mm
9.25 inches
3.7"
94 mm · 40% profile
18"
457.2 mm
Showing 11 to 14 of 14 products
235/40R18 Specifications
Read directly from the size code. Load index, speed rating, and rim width range vary by model.
| Specification | Imperial | Metric |
|---|---|---|
| Section width | 9.25 in | 235 mm |
| Aspect ratio | 40% | — |
| Sidewall height | 3.7 in | 94 mm |
| Overall diameter (calculated) | 25.4 in | 645 mm |
| Wheel / rim diameter | 18 in | 457.2 mm |
| Construction | Radial | — |
What does 235/40R18 mean?
Reading the code on your sidewall
235 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 94 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.
235/40R18 Questions & Answers
Dimensions and fitment guidelines for size 235/40R18
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Explore premium tires, wheels, and fitments from top brands
Gripmax Maxgrip R/T LT305/55R20
Gripmax Maxgrip R/T LT305/55R20
Zenna Sport Line 205/50ZR17
Zenna Sport Line 205/50ZR17
Toyo Open Country M/T LT285/75R17
Toyo Open Country M/T LT285/75R17
Land golden Landgolden LG17 + Dot 205/45ZR16
Land golden Landgolden LG17 + Dot 205/45ZR16
Atlander AX88 245/40ZR20
Atlander AX88 245/40ZR20
Toyo Open Country R/T 126/123Q10PLY LT325/60R20
Toyo Open Country R/T 126/123Q10PLY LT325/60R20
Barkley Trackstar UHP 215/55R17
Barkley Trackstar UHP 215/55R17
Cooper CS5 Grand Touring Blk - DOT2015 235/65R17
Cooper CS5 Grand Touring Blk - DOT2015 235/65R17
Cooper CS3 Touring DOT2015 215/60R17
Cooper CS3 Touring DOT2015 215/60R17
Cooper CS5 Ultra Touring Blk - Dot 205/50R17
Cooper CS5 Ultra Touring Blk - Dot 205/50R17
Royalhunter Royaltrax A/T 33X12.50R20LT
Royalhunter Royaltrax A/T 33X12.50R20LT
Bf goodrich Bfgoodrich Advantage Touring TA 215/55R16
Bf goodrich Bfgoodrich Advantage Touring TA 215/55R16
Gladiator X Comp HP AS1 225/40ZR18
Gladiator X Comp HP AS1 225/40ZR18
Lexani LXUHP-207 215/45ZR18
Lexani LXUHP-207 215/45ZR18
Leao Hwy F820 All Position 275/70R22.5
Leao Hwy F820 All Position 275/70R22.5
Leao Reg Drive AAR22S 3PMSF 225/70R19.5
Leao Reg Drive AAR22S 3PMSF 225/70R19.5
Landspider Citytraxx H/P 225/35ZR20
Landspider Citytraxx H/P 225/35ZR20
Atlander Roverstar H/T 245/65R17
Atlander Roverstar H/T 245/65R17
Fortune Tormenta H/T FSR305 275/55R20
Fortune Tormenta H/T FSR305 275/55R20
Fortune Tormenta R/T Buffed LT285/60R20
Fortune Tormenta R/T Buffed LT285/60R20
Gripmax Maxgrip R/T LT305/55R20
Gripmax Maxgrip R/T LT305/55R20
Zenna Sport Line 205/50ZR17
Zenna Sport Line 205/50ZR17
Toyo Open Country M/T LT285/75R17
Toyo Open Country M/T LT285/75R17
Land golden Landgolden LG17 + Dot 205/45ZR16
Land golden Landgolden LG17 + Dot 205/45ZR16
Atlander AX88 245/40ZR20
Atlander AX88 245/40ZR20
Toyo Open Country R/T 126/123Q10PLY LT325/60R20
Toyo Open Country R/T 126/123Q10PLY LT325/60R20
Barkley Trackstar UHP 215/55R17
Barkley Trackstar UHP 215/55R17
Cooper CS5 Grand Touring Blk - DOT2015 235/65R17
Cooper CS5 Grand Touring Blk - DOT2015 235/65R17
Cooper CS3 Touring DOT2015 215/60R17
Cooper CS3 Touring DOT2015 215/60R17
Cooper CS5 Ultra Touring Blk - Dot 205/50R17
Cooper CS5 Ultra Touring Blk - Dot 205/50R17
Royalhunter Royaltrax A/T 33X12.50R20LT
Royalhunter Royaltrax A/T 33X12.50R20LT
Bf goodrich Bfgoodrich Advantage Touring TA 215/55R16
Bf goodrich Bfgoodrich Advantage Touring TA 215/55R16
Gladiator X Comp HP AS1 225/40ZR18
Gladiator X Comp HP AS1 225/40ZR18
Lexani LXUHP-207 215/45ZR18
Lexani LXUHP-207 215/45ZR18
Leao Hwy F820 All Position 275/70R22.5
Leao Hwy F820 All Position 275/70R22.5
Leao Reg Drive AAR22S 3PMSF 225/70R19.5
Leao Reg Drive AAR22S 3PMSF 225/70R19.5
Landspider Citytraxx H/P 225/35ZR20
Landspider Citytraxx H/P 225/35ZR20
Atlander Roverstar H/T 245/65R17
Atlander Roverstar H/T 245/65R17
Fortune Tormenta H/T FSR305 275/55R20
Fortune Tormenta H/T FSR305 275/55R20
Fortune Tormenta R/T Buffed LT285/60R20
Fortune Tormenta R/T Buffed LT285/60R20