Tire Size Guide

325/65R18 Tires

Compare 17 available models across 1 categories, then confirm fitment for your vehicle.

Our Top Pick in 325/65R18
Nitto Recon Grappler A/T
All-TerrainValue

The Recon Grappler A/T by Nitto is a solid choice for those who prioritize off-road capability.

Off-road traction is a strong suit thanks to its aggressive tread design, making it suitable for varied terrains. Treadlife is backed by a 55,000-mile warranty, which is competitive within the all-terrain segment. Wet grip score of 6 is above the category average of 5.2, enhancing safety in rainy conditions.
72Spec score (est.)
Full analysis
17 models

Best All-Terrain Tires in 325/65R18

All All-Terrain tires

The Recon Grappler A/T by Nitto is a solid choice for those who prioritize off-road capability.

  • Off-road traction is a strong suit thanks to its aggressive tread design, making it suitable for varied terrains.
  • Treadlife is backed by a 55,000-mile warranty, which is competitive within the all-terrain segment.

Lacks 3PMSF certification, making it less suitable for drivers who need winter-capable all-terrain tires.

55,000 mi warrantyTreadwear 600Traction A
Spec score72estimated
Details
Sumitomo Encounter ATValue3PMSF Snow

The Sumitomo Encounter AT is a solid choice for those who need a durable all-terrain tire with a strong emphasis on longevity.

  • Treadlife rating of 8.8 with a 60,000-mile warranty exceeds the all-terrain category average of 55,717 miles.
  • Wet grip score of 6.0 is above the category average of 5.2, which helps in maintaining traction on wet roads.

If you prioritize a quiet and comfortable ride, consider alternatives like the Pirelli Scorpion Zero All Season.

60,000 mi warrantyTreadwear 660Traction A
Spec score69estimated
Details
Falken WildPeak A/T4WValue3PMSF Snow

The Falken WildPeak A/T4W is a solid choice for drivers who prioritize durability and off-road capability in an all-terrain tire.

  • Off-road traction is bolstered by the 3PMSF rating, making it suitable for light snow and challenging terrains.
  • Above-average treadlife with a 60,000-mile warranty, surpassing the category benchmark of 55,717 miles.

The R speed rating limits its suitability for drivers who frequently travel at highway speeds.

60,000 mi warrantyTreadwear 660Traction A
Spec score69estimated
Details

The Hankook Dynapro AT2 Xtreme is a solid choice for those who prioritize treadlife and off-road capability in an all-terrain tire.

  • Treadlife score of 8.8 and a 60,000-mile warranty exceed the category average of 55,717 miles, making it a durable choice for off-road enthusiasts.
  • Off-road traction is bolstered by the 3PMSF rating, which is a plus for all-terrain tires expected to handle diverse conditions.

If you prioritize on-road comfort and minimal noise, this tire may not meet your expectations due to its average noise score.

60,000 mi warrantyTreadwear 660Traction A
Spec score68estimated
Details
Show 13 more all-terrain options
66
Toyo Open Country A/T III

50,000 mi warranty · Treadwear 600

65
Falken WildPeak A/T3W

55,000 mi warranty · Treadwear 600

64
BFGoodrich All-Terrain T/A KO3

50,000 mi warranty · Treadwear 500

63
Yokohama Geolandar A/T4

55,000 mi warranty · Treadwear 550

61
Yokohama Geolandar X-AT

45,000 mi warranty · Treadwear 500

54
Atturo Trail Blade MTS

Specs on detail page

BFGoodrich Mud-Terrain T/A KM3

Specs on detail page

Cooper Discoverer STT PRO

Specs on detail page

Fitment

Vehicles Using 325/65R18

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Popular Brands in 325/65R18

Size decoded

What 325/65R18 Means

325/65R18 designates a tire 325 mm (12.8") wide with a sidewall 65% as tall as it is wide — about 211 mm (8.3") — mounted on a 18-inch wheel. That works out to an overall diameter of roughly 34.6", a circumference of about 108.8", and approximately 582 revolutions per mile. Exact figures vary slightly by manufacturer and tread design.

211 mm

Sidewall height

34.6"

Overall diameter

108.8"

Circumference

582

Revs per mile

Of the 17 325/65R18 tire models we track, the most common category is all-terrain (17 models) — a good indicator of the kind of vehicles and driving this size is designed for.

Before you buy

Frequently Asked Questions

What does 325/65R18 mean?
325/65R18 breaks down as follows: 325mm is the tire's section width (the widest point), 65 is the aspect ratio (sidewall height as a percentage of width), R means radial construction, and 18 is the wheel diameter in inches.
What vehicles use 325/65R18 tires?
325/65R18 is a common fitment for vehicles like the 2025 Ram 1500, 2024 Ram 1500, 2023 Ram 1500, 2022 Ram 1500 and others. Always confirm your specific trim's fitment before purchasing.
How tall is a 325/65R18 tire?
A 325/65R18 tire has a sidewall height of about 211 mm (8.3") and an overall diameter of roughly 34.6", turning approximately 582 revolutions per mile. Actual dimensions vary slightly by manufacturer and model, so confirm against your vehicle's placard before changing sizes.

325/65R18 Research Guides

Confirm 325/65R18 fits your vehicle

Wheel size can vary by trim and option package. Enter your year, make, model, and trim to verify fitment before you order.

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