Tires Size 255/45R18
Dimensions, specs, and every size 255/45R18 tire currently in stock
27.04"
687 mm · calculated
255 mm
10.04 inches
4.52"
114.8 mm · 45% profile
18"
457.2 mm
2 products
Showing 1 to 2 of 2 products
255/45R18 Specifications
Read directly from the size code. Load index, speed rating, and rim width range vary by model.
| Specification | Imperial | Metric |
|---|---|---|
| Section width | 10.04 in | 255 mm |
| Aspect ratio | 45% | — |
| Sidewall height | 4.52 in | 114.8 mm |
| Overall diameter (calculated) | 27.04 in | 687 mm |
| Wheel / rim diameter | 18 in | 457.2 mm |
| Construction | Radial | — |
What does 255/45R18 mean?
Reading the code on your sidewall
255 mm
The distance from sidewall to sidewall across the tire's widest point.
45% profile
The sidewall stands 45% of the section width, which is 114.8 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.
255/45R18 Questions & Answers
Dimensions and fitment guidelines for size 255/45R18
Need Help Choosing The Right Tires?
Have questions about fitment, brands, or pricing? Our team of tire experts is here to guide you to the perfect set — zero pressure, zero sales tactics.
Talk to a Tire Specialist Today
We make tire buying fast and effortless. Call or email us anytime to verify size compatibility, load index, or speed ratings for your vehicle.
Fast Expert Advice
Response within 1 business hour
Shop Our Collection
Explore premium tires, wheels, and fitments from top brands
235/50R19 COSMO ROAD HUNTER 99V M+S 560A-A 60K + ROAD HAZARD
235/45R17 TOYO EXTENSA HP II 97W XL 500-A-A 45K
235/50ZR18 ROADTRACK TERRENA UHP 110W XL 420-A-A 50K + ROAD HAZARD
145/70R13 ARMSTRONG BLU-TRAC PC 71T 700-A-A 85K+ ROAD HAZARD
225/55ZR18 LEXANI LXUHP-207 102W XL 500-A-A 50K + ROAD HAZARD
295/35ZR24 ROYALBLACK RACINGTRAC 110W 420-A-A 50K + ROAD HAZARD
35X12.50R18LT ATLANDER ROVERCLAW M/T I 123Q 10PLY
33X12.50R22 RBP REPULSOR M/T 3 BSW 114Q 12PLY 80psi
275/45ZR20 ROYALBLACK RACINGTRAC 110W 420-A-A 50K + ROAD HAZARD
185/65R15 GLADIATOR X COMP HP AS1 88H 420 A-A 60K + ROAD HAZARD
ST205/75R15 SYNERGY ST801 10PLY
265/70R16 ATLANDER ROVERCLAW A/T OWL 112T 560-A-B 50K+ ROAD HAZARD
265/70R16 ATLANDER ROVERCLAW A/T OWL 112T 560-A-B 50K+ ROAD HAZARD
215/40ZR18 ROADTRACK TERRENA UHP 89W XL 420-A-A 50K + ROAD HAZARD
305/35ZR20 ROADTRACK TERRENA UHP 107Y XL 420-A-A 50K + ROAD HAZARD
205/55R16 TRAVELSTAR ECO-MILE 4S 91V ALL-WEATHER 520A-A 60K+ ROAD HAZARD
235/35ZR20 ROADTRACK TERRENA UHP 92W M+S 420-A-A 50K + ROAD HAZARD
245/30ZR20 TRAVELSTAR ECOSPORT GT 90W XL 460A-A 50K+ ROAD HAZARD
225/55R17 ZENNA SPORT LINE 101V XL M+S 420-A-A 60K + ROAD HAZARD
235/50R19 COSMO ROAD HUNTER 99V M+S 560A-A 60K + ROAD HAZARD
235/45R17 TOYO EXTENSA HP II 97W XL 500-A-A 45K
235/50ZR18 ROADTRACK TERRENA UHP 110W XL 420-A-A 50K + ROAD HAZARD
145/70R13 ARMSTRONG BLU-TRAC PC 71T 700-A-A 85K+ ROAD HAZARD
225/55ZR18 LEXANI LXUHP-207 102W XL 500-A-A 50K + ROAD HAZARD
295/35ZR24 ROYALBLACK RACINGTRAC 110W 420-A-A 50K + ROAD HAZARD
35X12.50R18LT ATLANDER ROVERCLAW M/T I 123Q 10PLY
33X12.50R22 RBP REPULSOR M/T 3 BSW 114Q 12PLY 80psi
275/45ZR20 ROYALBLACK RACINGTRAC 110W 420-A-A 50K + ROAD HAZARD
185/65R15 GLADIATOR X COMP HP AS1 88H 420 A-A 60K + ROAD HAZARD
ST205/75R15 SYNERGY ST801 10PLY
265/70R16 ATLANDER ROVERCLAW A/T OWL 112T 560-A-B 50K+ ROAD HAZARD
265/70R16 ATLANDER ROVERCLAW A/T OWL 112T 560-A-B 50K+ ROAD HAZARD
215/40ZR18 ROADTRACK TERRENA UHP 89W XL 420-A-A 50K + ROAD HAZARD
305/35ZR20 ROADTRACK TERRENA UHP 107Y XL 420-A-A 50K + ROAD HAZARD
205/55R16 TRAVELSTAR ECO-MILE 4S 91V ALL-WEATHER 520A-A 60K+ ROAD HAZARD
235/35ZR20 ROADTRACK TERRENA UHP 92W M+S 420-A-A 50K + ROAD HAZARD
245/30ZR20 TRAVELSTAR ECOSPORT GT 90W XL 460A-A 50K+ ROAD HAZARD
225/55R17 ZENNA SPORT LINE 101V XL M+S 420-A-A 60K + ROAD HAZARD