How tall is a 35x12.50R18 tire?

A 35x12.50R18 has a nominal overall diameter of 35 inches (889 mm), calculated as the 18-inch wheel plus two sidewalls. This is the unloaded figure — a fitted tire sits fractionally shorter under the weight of the vehicle.

What wheel size does a 35x12.50R18 tire fit?

A 35x12.50R18 fits a wheel of 18 inches in diameter. The wheel also has to be within the rim width range the manufacturer publishes for this size, which is printed in the tire's spec sheet.

What do the numbers in 35x12.50R18 mean?

This is a flotation size, quoted in inches rather than millimetres. 35 is the overall diameter, 12.5 is the section width, R marks the construction (radial), and 18 is the wheel diameter.

Free shipping on every order

Brand-new, factory-fresh tires

Ships to your door or installer

Over 10,000 tires in stock

Free shipping on every order

Brand-new, factory-fresh tires

Ships to your door or installer

Over 10,000 tires in stock

Size Dimensions & Specs

Tires Size 35x12.50R18

Dimensions, specs, and every size 35x12.50R18 tire currently in stock

Overall Height

35"

889 mm · calculated

Section Width

12.5"

stated in inches

Sidewall Height

8.5"

216 mm

Wheel Diameter

18"

457.2 mm

35x12.50R18 Specifications

Read directly from the size code. Load index, speed rating, and rim width range vary by model.

Specification	Imperial	Metric
Section width	12.5 in	—
Sidewall height	8.5 in	216 mm
Overall diameter (calculated)	35 in	889 mm
Wheel / rim diameter	18 in	457.2 mm
Construction	Radial	—

What does 35x12.50R18 mean?

Reading the code on your sidewall

Overall diameter

35 in

Flotation sizes lead with the tire's full height in inches rather than a width in millimetres.

Section width

12.5 in

The width across the widest point of the tire, also quoted in inches on this style of size.

Construction (R)

Radial

The body plies run across the tire at right angles to the direction of travel.

Wheel diameter

18 in

Fits a wheel measuring 18 inches across.

35x12.50R18 Questions & Answers

Dimensions and fitment guidelines for size 35x12.50R18

Customer Support & Fitment Advice

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.

100% Guaranteed Fitment Advice

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.

Call Direct

(916) 520-1702

Send Email

info@natireshub.com

Mon - Fri: 8:00 AM - 5:00 PM PST

✓

Fast Expert Advice

Response within 1 business hour

Live Inventory

Shop Our Collection

Explore premium tires, wheels, and fitments from top brands

P235/50R19 LIONHART LH-FIVE 103V BLK XL 320-A-A 40K + ROAD HAZARD

285/35ZR19 ROADTRACK TERRENA UHP 103Y M+S 420-A-A 50K + ROAD HAZARD

LT285/55R20 ROYALBLACK TERRA FORCE RTX R/T 124/121S 12PLY

255/45ZR18 ROYALBLACK RACINGTRAC 103W XL 420-A-A 50K + ROAD HAZARD

225/45ZR17 ROYALBLACK RACINGTRAC 94W XL 420-A-A 50K + ROAD HAZARD

LT265/70R17 ROADCRUZA RA3200 M/T 121/118Q 10PLY

275/55R20 TOYO PROXES ST III 117V XL BSW 500-A-A 40K

245/50ZR20 ROYALBLACK RACINGTRAC 102Y 420-A-A 50K + ROAD HAZARD

205/55R16 TRAVELSTAR ECO-MILE 4S 91V ALL-WEATHER 520A-A 60K+ ROAD HAZARD

265/70R16 ZETA CONSENSO H/T 112H 500A-A M+S 40K+ ROAD HAZARD

225/70R15C ARMSTRONG BLU-TRAC VAN 112/110R 8PLY 40K+ ROAD HAZARD

LT275/65R20 PEGASUS RTX R/T 126/123R 10PLY 40K+ ROAD HAZARD

235/35ZR20 ROADTRACK TERRENA UHP 92W M+S 420-A-A 50K + ROAD HAZARD

ST205/75R15 SYNERGY ST801 10PLY

185/70R14 ROYALBLACK TOURING HP 88T 560-A-A 60K + ROAD HAZARD

LT265/70R16 ROYALHUNTER ROYALTRAX A/T 121/118S 10PLY

LT275/65R20 RBP GURANTOR H/T 126/123Q 10PLY

LT275/55R20 FORTUNE TORMENTA R/T FSR309 120/117Q 10PLY M+S 50K 80psi *NEW

295/35ZR24 ROYALBLACK RACINGTRAC 110W 420-A-A 50K + ROAD HAZARD

215/55R16 ROADTRACK TERRENA UHP 97V M+S 420-A-A 50K + ROAD HAZARD