Tires Size 225/40R18
Dimensions, specs, and every size 225/40R18 tire currently in stock
25.08"
637 mm · calculated
225 mm
8.86 inches
3.54"
90 mm · 40% profile
18"
457.2 mm
1 product
Showing 1 to 1 of 1 products
225/40R18 Specifications
Read directly from the size code. Load index, speed rating, and rim width range vary by model.
| Specification | Imperial | Metric |
|---|---|---|
| Section width | 8.86 in | 225 mm |
| Aspect ratio | 40% | — |
| Sidewall height | 3.54 in | 90 mm |
| Overall diameter (calculated) | 25.08 in | 637 mm |
| Wheel / rim diameter | 18 in | 457.2 mm |
| Construction | Radial | — |
What does 225/40R18 mean?
Reading the code on your sidewall
225 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 90 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.
225/40R18 Questions & Answers
Dimensions and fitment guidelines for size 225/40R18
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
225/55R17 ZENNA SPORT LINE 101V XL M+S 420-A-A 60K + ROAD HAZARD
7.50-16 AKURET HARROW TRACK F2 F3 8PLY dot-2012
205/40ZR17 ROYALBLACK RACINGTRAC 84W XL 420-A-A 50K + ROAD HAZARD
LT265/70R16 LIONHART LIONCLAW ATX2 BLK 10PLY 40K+ ROAD HAZARD
33X12.50R22 RBP REPULSOR M/T 3 BSW 114Q 12PLY 80psi
145/70R13 ARMSTRONG BLU-TRAC PC 71T 700-A-A 85K+ ROAD HAZARD
265/70R16 ZETA CONSENSO H/T 112H 500A-A M+S 40K+ ROAD HAZARD
245/45ZR18 FORTUNE VIENTO FSR702 A/S 100Y XL M+S 500A-A 50K
P235/70R16 LEXANI LXHT-206 107T 500-A-A 55K+ ROAD HAZARD
LT275/55R20 FORTUNE TORMENTA R/T FSR309 120/117Q 10PLY M+S 50K 80psi *NEW
Leao Reg Drive AAR22S 3PMSF 225/70R19.5
LT285/70R17 LANVIGATOR VALIANT A/T 126/123R 10PLY 50K + ROAD HAZAR
265/70R16 COSMO EL TIGRE A/T 112T BSW M+S 540A-B 55K+ ROAD HAZARD
P215/60R17 LEXANI QUATTRO TEMPO TOUR AW 96H BLK 600A-A 70K+ ROAD HAZARD
195/55R16 TOYO EXTENSA HP 87V BSW 360-A-A 45K
295/35ZR24 ROYALBLACK RACINGTRAC 110W 420-A-A 50K + ROAD HAZARD
225/55R17 ZENNA SPORT LINE 101V XL M+S 420-A-A 60K + ROAD HAZARD
7.50-16 AKURET HARROW TRACK F2 F3 8PLY dot-2012
205/40ZR17 ROYALBLACK RACINGTRAC 84W XL 420-A-A 50K + ROAD HAZARD
LT265/70R16 LIONHART LIONCLAW ATX2 BLK 10PLY 40K+ ROAD HAZARD
33X12.50R22 RBP REPULSOR M/T 3 BSW 114Q 12PLY 80psi
145/70R13 ARMSTRONG BLU-TRAC PC 71T 700-A-A 85K+ ROAD HAZARD
265/70R16 ZETA CONSENSO H/T 112H 500A-A M+S 40K+ ROAD HAZARD
245/45ZR18 FORTUNE VIENTO FSR702 A/S 100Y XL M+S 500A-A 50K
P235/70R16 LEXANI LXHT-206 107T 500-A-A 55K+ ROAD HAZARD
LT275/55R20 FORTUNE TORMENTA R/T FSR309 120/117Q 10PLY M+S 50K 80psi *NEW
Leao Reg Drive AAR22S 3PMSF 225/70R19.5
LT285/70R17 LANVIGATOR VALIANT A/T 126/123R 10PLY 50K + ROAD HAZAR
265/70R16 COSMO EL TIGRE A/T 112T BSW M+S 540A-B 55K+ ROAD HAZARD
P215/60R17 LEXANI QUATTRO TEMPO TOUR AW 96H BLK 600A-A 70K+ ROAD HAZARD
195/55R16 TOYO EXTENSA HP 87V BSW 360-A-A 45K
295/35ZR24 ROYALBLACK RACINGTRAC 110W 420-A-A 50K + ROAD HAZARD