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265/65R18 Tire Size: 31.6" Tall, a 32-Inch Tire

Straight answer

A 265/65R18 stands 31.6 inches tall and 10.4 inches wide on a 18-inch wheel, which makes it a 32-inch tire in truck-speak. NTW stocks 12 tire models in this size right now.

31.6" tall10.4" wide18" wheel639 revs/mile

265/65R18 dimensions

Overall diameter

31.56"

Section width

10.43"

Sidewall height

6.78"

Wheel diameter

18"

Circumference

99.2"

Revolutions per mile

639

≈ 31.6x10.4R18 flotation. Nominal math; real tires run a few tenths off depending on brand, load range, rim width, and air pressure.

What 265/65R18 means

  • 265Section width: 265 mm (10.4") wall to wall
  • 65Aspect ratio: sidewall is 65% of the width, so 6.8" tall
  • RRadial construction
  • 18Fits a 18-inch wheel

Want the full rundown on sidewall codes, load index, and speed rating? Read how to read a tire size.

265/65R18 compared to nearby 18-inch sizes

Speedometer column assumes your truck is calibrated for 265/65R18 and reads 65 mph.

SizeHeightvs 265/65R18Width changeActual speedCompare
265/60R1830.5"-1.0" (-3.3%)0.0"62.9 mphFull comparison
255/70R1832.1"+0.5" (+1.6%)-0.4"66.0 mphFull comparison
275/65R1832.1"+0.5" (+1.6%)+0.4"66.1 mphFull comparison
285/65R1832.6"+1.0" (+3.2%)+0.8"67.1 mphFull comparison
265/70R1832.6"+1.0" (+3.3%)0.0"67.1 mphFull comparison

Rule of thumb: inside 3% of stock diameter feels stock; past 8 to 10% and most owners budget for a re-gear. Run your exact numbers in the tire size calculator, or check what stepping down to 265/60R18 does.

Trucks that come with 265/65R18

Tires in stock in 265/65R18

12 models, 16 SKUs at NTW (different load ranges and sidewall styles). Refreshed daily.

TireTypeOptionsFrom
Bfgoodrich Trail-Terrain T/A+All Terrain2$249
Falken Wildpeak A/T4WAll Terrain2$298
Nitto Ridge GrapplerAll Terrain2$303
Nitto Terra Grappler G3All Terrain2$290
Bfgoodrich All-Terrain T/A KO3All Terrain1$330
Falken Rubitrek A/TAll Terrain1$242
Kenda Klever RTAll Terrain1$272
Mickey Thompson Baja Boss ATAll Terrain1$305
Toyo Open Country A/T IIIAll Terrain1$306
Toyo Open Country C/TAll Terrain1$235
Toyo Open Country H/T IIAll Terrain1$243
Toyo Open Country R/TAll Terrain1$312

Prices per tire at NTW when last checked; confirm at checkout.

Frequently Asked Questions

How tall is a 265/65R18 tire in inches?+

A 265/65R18 is 31.56 inches tall and 10.43 inches wide, with a 6.78-inch sidewall on a 18-inch wheel. Real mounted tires vary a few tenths of an inch by brand, load range, and rim width.

Is 265/65R18 a 32-inch tire?+

Close enough that everybody calls it one. It measures 31.6 inches, so it's sold and talked about as a 32. The flotation equivalent is 31.6x10.4R18.

What does 265/65R18 mean?+

265/65R18 means a tire 265 millimeters wide with a sidewall 65% as tall as it is wide, built for a 18-inch wheel.

265/65R18 vs 255/70R18: how much bigger?+

255/70R18 is 0.5 inches taller (1.6%) and 0.4 inches narrower. Going from 265/65R18 to 255/70R18, a speedometer reading 65 mph means you're actually doing 66.0.

Looking for another size? See the full truck tire size chart.