Tire Scouter

305/70R18 tires

Compare 15 models made in this size across 2 categories, ranked by spec score, then confirm fitment for your vehicle.

Spec scores are estimates from five manufacturer specs, not road tests. How we score

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Our top pick in 305/70R18

Nitto Recon Grappler A/T

  • All-terrain

Best for off-road enthusiasts.

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.
Full analysis

The highest spec score among all-terrain tires in this size that we have analysis for, the most common category for 305/70R18.

72Strong
55k mi
600
A
R · 106 mph

Every scale below runs from the lowest to the highest spec score among the 7 scored tires in 305/70R18 (54 to 72).

Best all-terrain tires in 305/70R18

14 models, highest spec score first.

All all-terrain tires

  1. Nitto Recon Grappler A/T

    Best for off-road enthusiasts.

    72StrongFrom 4 of 5 specs
    Warranty
    55k mi
    Treadwear
    600
    Traction
    A
    Speed rating
    R · 106 mph
    • 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.

  2. BFGoodrich All-Terrain T/A KO2

    Severe-snow rated

    Best for off-road enthusiasts.

    68GoodFrom 4 of 5 specs
    Warranty
    50k mi
    Treadwear
    500
    Traction
    A
    Speed rating
    R · 106 mph
    • Off-road traction is reliable due to its aggressive tread design, making it a solid choice for mixed terrain use.
    • Treadlife score of 8.3 and a 50,000-mile warranty offer above-average durability compared to competitors like the Toyo Open Country A/T III.
    • If you're a high-mileage driver, the 50,000-mile warranty might not be as appealing as the 60,000-mile warranty offered by some competitors.

  3. BFGoodrich All Terrain T/A KO3

    Severe-snow rated

    Best for off-road adventurers.

    67Good
    Warranty
    50k mi
    Treadwear
    500
    Traction
    A
    Speed rating
    S · 112 mph
    • Off-road traction is bolstered by the 3PMSF rating, making it suitable for challenging terrains and mild winter conditions.
    • Treadlife score of 7.5 is supported by a 50,000-mile warranty, which is competitive within the all-terrain category.
    • If you prioritize quiet highway rides, the average noise level may be a dealbreaker compared to quieter options.

  4. Toyo Open Country A/T III

    Severe-snow rated

    Best for adventurous off-roaders.

    65GoodFrom 4 of 5 specs
    Warranty
    50k mi
    Treadwear
    600
    Traction
    A
    Speed rating
    R · 106 mph
    • Off-road traction is supported by the 3PMSF rating, making it suitable for diverse terrains including light snow.
    • Treadlife warranty of 65,000 miles exceeds the all-terrain category average of 55,717 miles, promising longer durability.
    • If you prioritize on-road quietness and handling, consider other options as the Open Country A/T III focuses more on off-road durability.
Show 10 more all-terrain tires

  1. Mickey Thompson Baja Boss A/T

    Severe-snow rated

    Best for off-road enthusiasts.

    65GoodFrom 4 of 5 specs
    Warranty
    50k mi
    Treadwear
    600
    Traction
    A
    Speed rating
    Q · 100 mph

  2. Yokohama Geolandar X-AT

    Best for off-road enthusiasts.

    54FairFrom 4 of 5 specs
    Warranty
    45k mi
    Treadwear
    500
    Traction
    B
    Speed rating
    Q · 100 mph

  3. Mickey Thompson Baja Legend EXP

    Best for off-road enthusiasts.

    Not enough spec data
    Warranty
    50k mi
    Treadwear
    Not graded
    Traction
    Not graded
    Speed rating
    Q · 100 mph

  4. Mickey Thompson Baja Legend MTZ

    Best for off-road enthusiasts.

    Not enough spec data
    Warranty
    None listed
    Treadwear
    Not graded
    Traction
    Not graded
    Speed rating
    Not listed

  5. Nexen Roadian MTX

    Best for off-road adventurers.

    Not enough spec data
    Warranty
    None listed
    Treadwear
    Not graded
    Traction
    Not graded
    Speed rating
    Q · 99 mph

  6. BFGoodrich HD-Terrain T/A KT

    Best for adventurous off-roaders.

    Not enough spec data
    Warranty
    None listed
    Treadwear
    Not graded
    Traction
    Not graded
    Speed rating
    R · 106 mph

  7. Goodyear Wrangler Territory MT

    Best for off-road enthusiasts.

    Not enough spec data
    Warranty
    None listed
    Treadwear
    Not graded
    Traction
    Not graded
    Speed rating
    R · 106 mph

  8. Yokohama Geolandar M/T G003

    Best for off-road enthusiasts.

    Not enough spec data
    Warranty
    None listed
    Treadwear
    Not graded
    Traction
    Not graded
    Speed rating
    Q · 99 mph

  9. Cooper Discoverer STT PRO

    Best for off-road enthusiasts.

    Not enough spec data
    Warranty
    None listed
    Treadwear
    Not graded
    Traction
    Not graded
    Speed rating
    Q · 100 mph

  10. Cooper Discoverer S/T Maxx

    Best for off-road enthusiasts.

    Not enough spec data
    Warranty
    None listed
    Treadwear
    Not graded
    Traction
    Not graded
    Speed rating
    Q · 100 mph

Best highway all-season truck tires in 305/70R18

1 model, highest spec score first.

All highway all-season truck tires

  1. Nitto Dura Grappler

    Best for long-distance highway drivers.

    65GoodFrom 2 of 5 specs
    Warranty
    60k mi
    Treadwear
    600
    Traction
    Not graded
    Speed rating
    R · 106 mph
    • Treadlife score of 8.3 is strong, backed by a 60,000-mile warranty, which is just shy of the category average.
    • Dry grip rating of 7.5 is competitive, providing reliable performance on dry highways.
    • The wet grip performance is below average, which might be a dealbreaker for drivers in consistently rainy regions.

Vehicles that use 305/70R18

A sample of recent vehicles whose factory front size is 305/70R18. Sizes can vary by trim, so confirm yours before you buy.

  • 2025 Chevrolet Silverado 2500
  • 2025 GMC Hummer EV
  • 2025 GMC Sierra 2500 HD
  • 2024 Chevrolet Silverado 2500
  • 2024 GMC Hummer EV
  • 2024 GMC Sierra 2500 HD
  • 2023 GMC Hummer EV
  • 2022 GMC Hummer EV
  • 2020 GMC Sierra 2500 HD

Popular brands in 305/70R18

The number beside each brand is how many of its models come in this size.

What 305/70R18 means

305/70R18 designates a tire 305 mm (12.0") wide with a sidewall 70% as tall as it is wide — about 214 mm (8.4") — mounted on a 18-inch wheel. That works out to an overall diameter of roughly 34.8", a circumference of about 109.4", and approximately 579 revolutions per mile. Exact figures vary slightly by manufacturer and tread design.

Of the 15 305/70R18 tire models we track, the most common category is all-terrain (14 models), followed by highway all-season truck (1) — a good indicator of the kind of vehicles and driving this size is designed for.

Sidewall height
214 mm
Overall diameter
34.8 in
Circumference
109.4 in
Revs per mile
579

Frequently asked questions

What does 305/70R18 mean?

305/70R18 breaks down as follows: 305mm is the tire's section width (the widest point), 70 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 305/70R18 tires?

305/70R18 is a common fitment for vehicles like the 2025 Chevrolet Silverado 2500, 2025 GMC Hummer EV, 2025 GMC Sierra 2500 HD, 2024 Chevrolet Silverado 2500 and others. Always confirm your specific trim's fitment before purchasing.

How tall is a 305/70R18 tire?

A 305/70R18 tire has a sidewall height of about 214 mm (8.4") and an overall diameter of roughly 34.8", turning approximately 579 revolutions per mile. Actual dimensions vary slightly by manufacturer and model, so confirm against your vehicle's placard before changing sizes.

305/70R18 research guides

All-season vs all-terrain tires

Compare comfort, off-road grip, tread life, and total cost before choosing a category.

Read the guide

LT vs P-metric tires

Load ranges, ply ratings and XL tires explained, and what changes when you switch to LT tires.

Read the guide

Best tires for trucks

Truck-focused picks and tradeoffs for highway, all-terrain, towing, and work-truck use.

Read the guide

Confirm 305/70R18 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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