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265/50R20 Tire Size: 30.4" Tall, a 30-Inch Tire

Straight answer

A 265/50R20 stands 30.4 inches tall and 10.4 inches wide on a 20-inch wheel, which makes it a 30-inch tire in truck-speak. NTW stocks 13 tire models in this size right now.

30.4" tall10.4" wide20" wheel663 revs/mile

265/50R20 dimensions

Overall diameter

30.43"

Section width

10.43"

Sidewall height

5.22"

Wheel diameter

20"

Circumference

95.6"

Revolutions per mile

663

≈ 30.4x10.4R20 flotation. Nominal math; real tires run a few tenths off depending on brand, load range, rim width, and air pressure.

What 265/50R20 means

  • 265Section width: 265 mm (10.4") wall to wall
  • 50Aspect ratio: sidewall is 50% of the width, so 5.2" tall
  • RRadial construction
  • 20Fits a 20-inch wheel

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

265/50R20 compared to nearby 20-inch sizes

Speedometer column assumes your truck is calibrated for 265/50R20 and reads 65 mph.

SizeHeightvs 265/50R20Width changeActual speedCompare
275/55R2031.9"+1.5" (+4.9%)+0.4"68.2 mphFull comparison
305/50R2032.0"+1.6" (+5.2%)+1.6"68.4 mphFull comparison
285/55R2032.3"+1.9" (+6.3%)+0.8"69.1 mphFull comparison
265/60R2032.5"+2.1" (+6.9%)0.0"69.5 mphFull comparison
295/55R2032.8"+2.3" (+7.7%)+1.2"70.0 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.

Trucks that come with 265/50R20

Tires in stock in 265/50R20

13 models, 14 SKUs at NTW (different load ranges and sidewall styles). Refreshed daily.

TireTypeOptionsFrom
Bfgoodrich Trail-Terrain T/A+All Terrain2$275
AMP Off-Road AT Terrain AttackAll Terrain1$256
Falken Wildpeak A/T TrailAll Terrain1$269
Fuel Off-Road Gripper ATMud Terrain, On/Off-Road1$235
Mickey Thompson Baja Boss ATAll Terrain1$293
Nitto Recon Grappler A/TAll Terrain1$272
Nitto Ridge GrapplerAll Terrain1$288
Nitto Terra Grappler G3All Terrain1$266
Toyo Open Country A/T IIIAll Terrain1$288
Toyo Open Country C/TAll Terrain1$240
Toyo Open Country H/T IIAll Terrain1$246
Toyo Open Country R/T TrailAll Terrain1$297
Toyo Proxis ST3Highway1$175

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

Frequently Asked Questions

How tall is a 265/50R20 tire in inches?+

A 265/50R20 is 30.43 inches tall and 10.43 inches wide, with a 5.22-inch sidewall on a 20-inch wheel. Real mounted tires vary a few tenths of an inch by brand, load range, and rim width.

Is 265/50R20 a 30-inch tire?+

Close enough that everybody calls it one. It measures 30.4 inches, so it's sold and talked about as a 30. The flotation equivalent is 30.4x10.4R20.

What does 265/50R20 mean?+

265/50R20 means a tire 265 millimeters wide with a sidewall 50% as tall as it is wide, built for a 20-inch wheel.

265/50R20 vs 275/55R20: how much bigger?+

275/55R20 is 1.5 inches taller (4.9%) and 0.4 inches wider. Going from 265/50R20 to 275/55R20, a speedometer reading 65 mph means you're actually doing 68.2.

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