Tires Size 275/40R18
Dimensions, specs, and every size 275/40R18 tire currently in stock
26.66"
677 mm · calculated
275 mm
10.83 inches
4.33"
110 mm · 40% profile
18"
457.2 mm
4 products
In stock · Free shipping on every order
Showing 1 to 4 of 4 products
275/40R18 Specifications
Read directly from the size code. Load index, speed rating, and rim width range vary by model.
| Specification | Imperial | Metric |
|---|---|---|
| Section width | 10.83 in | 275 mm |
| Aspect ratio | 40% | — |
| Sidewall height | 4.33 in | 110 mm |
| Overall diameter (calculated) | 26.66 in | 677 mm |
| Wheel / rim diameter | 18 in | 457.2 mm |
| Construction | Radial | — |
What does 275/40R18 mean?
Reading the code on your sidewall
275 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 110 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.
275/40R18 Questions & Answers
Dimensions and fitment guidelines for size 275/40R18
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
245/45ZR18 FORTUNE VIENTO FSR702 A/S 100Y XL M+S 500A-A 50K
LT265/75R16 IMPERIAL MUD CRUISER M/T 123/120Q OWL 10PLY
245/45ZR20 ATLANDER XSPORT-86 103W XL 420A-A 45K + ROAD HAZARD
285/35ZR19 ROADTRACK TERRENA UHP 103Y M+S 420-A-A 50K + ROAD HAZARD
205/40ZR17 ROYALBLACK RACINGTRAC 84W XL 420-A-A 50K + ROAD HAZARD
275/45ZR20 ROYALBLACK RACINGTRAC 110W 420-A-A 50K + ROAD HAZARD
235/45R17 TOYO EXTENSA HP II 97W XL 500-A-A 45K
LT275/65R20 PEGASUS RTX R/T 126/123R 10PLY 40K+ ROAD HAZARD
235/55R19 ARMSTRONG TRU-TRAC SU 105V XL M+S 440-A-A 65K+ ROAD HAZARD
205/45ZR16 ROADTRACK TERRENA UHP 98W M+S 420-A-A 50K + ROAD HAZARD
295/35ZR24 ROYALBLACK RACINGTRAC 110W 420-A-A 50K + ROAD HAZARD
P235/50R19 LIONHART LH-FIVE 103V BLK XL 320-A-A 40K + ROAD HAZARD
LT265/70R16 LIONHART LIONCLAW ATX2 BLK 10PLY 40K+ ROAD HAZARD
275/40ZR18 LANDSPIDER CITY SPORT 103W XL BSW
P215/55R17 LIONHART RAMANI A/S 98W XL BLK 500A-A 50K + ROAD HAZARD
LT245/75R16 ARMSTRONG TRU-TRAC A/T 120/116S 10PLY 65K+ROAD HAZARD
33X12.50R22 RBP REPULSOR M/T 3 BSW 114Q 12PLY 80psi
P255/55R18 LEXANI QUATTRO TEMPO TOUR AW 109V BLK 600A-A 70K+ ROAD HAZARD
245/45ZR18 FORTUNE VIENTO FSR702 A/S 100Y XL M+S 500A-A 50K
LT265/75R16 IMPERIAL MUD CRUISER M/T 123/120Q OWL 10PLY
245/45ZR20 ATLANDER XSPORT-86 103W XL 420A-A 45K + ROAD HAZARD
285/35ZR19 ROADTRACK TERRENA UHP 103Y M+S 420-A-A 50K + ROAD HAZARD
205/40ZR17 ROYALBLACK RACINGTRAC 84W XL 420-A-A 50K + ROAD HAZARD
275/45ZR20 ROYALBLACK RACINGTRAC 110W 420-A-A 50K + ROAD HAZARD
235/45R17 TOYO EXTENSA HP II 97W XL 500-A-A 45K
LT275/65R20 PEGASUS RTX R/T 126/123R 10PLY 40K+ ROAD HAZARD
235/55R19 ARMSTRONG TRU-TRAC SU 105V XL M+S 440-A-A 65K+ ROAD HAZARD
205/45ZR16 ROADTRACK TERRENA UHP 98W M+S 420-A-A 50K + ROAD HAZARD
295/35ZR24 ROYALBLACK RACINGTRAC 110W 420-A-A 50K + ROAD HAZARD
P235/50R19 LIONHART LH-FIVE 103V BLK XL 320-A-A 40K + ROAD HAZARD
LT265/70R16 LIONHART LIONCLAW ATX2 BLK 10PLY 40K+ ROAD HAZARD
275/40ZR18 LANDSPIDER CITY SPORT 103W XL BSW
P215/55R17 LIONHART RAMANI A/S 98W XL BLK 500A-A 50K + ROAD HAZARD
LT245/75R16 ARMSTRONG TRU-TRAC A/T 120/116S 10PLY 65K+ROAD HAZARD
33X12.50R22 RBP REPULSOR M/T 3 BSW 114Q 12PLY 80psi
P255/55R18 LEXANI QUATTRO TEMPO TOUR AW 109V BLK 600A-A 70K+ ROAD HAZARD